How does the lawn mower work?

Lawn mower repair is an excellent way to get your feet wet in engine repair. They’re simple machines that can serve as a good launching pad for more difficult undertakings, such as automobiles and trucks. There are several lawn mowers that can be repaired without any knowledge of how they work.
Riding lawnmowers and walk-behind lawnmowers are the two most frequent types. Here, we’ll be focused on gas and walking mowers, but a few things will also apply to riding mowers, battery-powered mowers, and wired electric mowers.

The Engine Is Similar to the One in Your Car—Just Way Smaller

Using an automobile analogy, imagine your lawnmower has a whirling blade installed on its underside that cuts the grass as you “drive” across your yard. So, that’s what they are in essence—just on a much, much smaller and more manageable size.
When you manually spin the mower’s engine ten times to get it going, it draws in air and fuel. Through a carburetor, air and fuel are mixed together before they are fed into an engine’s combustion chamber.

Spark plugs are used to ignite this combination, which is powered by a flywheel that revolves with the engine to provide the necessary electricity. As the flywheel rotates, magnets attached to it pass over an ignition coil, creating a magnetic field that creates energy and delivers voltage to the spark plug. The flywheel is also a cooling fan and a shock absorber, thanks to the fins attached to it (when the blade hits a rock or tree roots). between combustion cycles, it acts as an engine propellant.
In the event of a controlled explosion, the air and fuel combination is ignited, driving a piston down and causing a crankshaft to turn. It’s a lot like your car’s engine, but smaller. Walk-behind mower engines are typically 150 cubic centimeters in capacity, whereas a small automobile engine is more than 10 times larger.) Engine rotation is transmitted to wheel movement on a car’s rims and tires. On a lawn mower, on the other hand, the cutting blade receives the rotation immediately.
The engine is the lawn mower’s most critical component, and it requires regular maintenance, such as oil changes and the replacement of the spark plug and air filter. With good care, such as adding stabilizer to the fuel and never letting the fuel stay in the engine for more than a few months, the carburetor requires very little maintenance. However, old gas can decompose inside of the carburetor and cause it to clog up very quickly.

The Blade Control Handle Is a Crucial Safety Feature

In order to start and run an engine on a lawn mower, you must press and hold down a lever that is near the handle. The blade control handle or brake bail arm is the technical term for this part. Let go and the blade will come to a complete halt as soon as you release your grip.
It’s a quick and easy way to stop the mower after mowing, but it’s also a safety feature that could save your life if you trip or fall while cutting the grass.
Here’s the breakdown: Both of these functions are accomplished by connecting the handle (by cable) to a mechanism located close to the engine. It grounds out the ignition and applies a flywheel brake to stop the engine (and the blade) as rapidly as possible.
In the unlikely event that the grounding wire or brake pad comes free, or the cable snaps, you’ll want to grasp how this safety mechanism works before tackling the repair.

The Deck and Cutting Blade Create a Suction to Cut the Grass

Think about how a whirling blade would affect the grass. In order for grass to stay put when you swipe something over it, the grass must be so light that it travels away. As a result, your lawnmower must take it into account.
Take a look at your lawn mower’s blade, and you’ll see that it’s not a flat, straight surface all the way across. Instead, there are tabs on the ends of the blade that curve up slightly, which provide lift and suction. Grass is sucked into the mower deck’s enclosed space as the mower moves over it, creating a vacuum. This forces the grass to stand up upright while the blade makes its way through.
But even if it’s primarily physics doing all the work, it’s still crucial that you inspect the blade occasionally and sharpen it if it’s not cutting the grass very well. Or replace it if it’s fully worn out.
As if reading about lawn mowers wasn’t enough of an educational experience on its own, you now have a better understanding of physics. In spite of their numerous moving parts, lawn mowers are relatively simple machines that are straightforward to fix.

See more : Best lawn mower for hilly yards

How To Get The Right Size Trucks For Skateboards?

 

Choosing the right skateboard truck size can make a big difference in how your skateboard is set up. However, if you are new to skateboarding, it can be hard to understand the different skateboard truck sizes and measurements. In this guide, we’ll show you everything you need to know about buying new skateboard trucks, from how to measure them to how each brand is different, so that you can choose the right ones for your next set.

How to Pick the Right Truck Width for Your Deck.

Before you buy a new set of skateboard trucks, you need to know the width of the skateboard deck you will use them with. For the best truck size, you want the overall width of the truck to match the width of the deck. For example, a 7.75″ deck goes with a 5.0″ truck, and an 8.0″ deck goes with a 5.25″ truck.

Match the widths of the truck and the deck.
Part of the reason for this is how it works, and part of it is how it looks. When the trucks are the same width as the deck, the skateboard will be more stable when spinning tricks like Kickflips and Heelflips are done. This is because the skateboard’s center of gravity will be more in the middle. When grinding rails or ramp coping, it’s also easier to see where your wheels are under the board.

What do the sizes of the truck mean?

The ‘hanger’ width is the most common way to measure a truck. What is a skateboard truck’s hanger? The axle is held in place by the hanger (Fig. 1), which comes in different 1/4″ widths, such as 5.0″, 5.25″, etc. The trucks you buy will actually be wider than the size listed because the axle isn’t included.

The width of the axle will be bigger than the width of the hanger. The exposed axle will usually be about 1.375″ or 35mm on each side, or 2.75″ or 70mm all together (Fig 2.). Now that you know this, you can see that a 5.0″ truck actually has a width of 7.75″ (including the axle), making it the perfect width for a 7.75″ deck.

Truck Brands and Their Differences

There are many brands of trucks on the market, and to make things even more confusing, each brand has its own way of naming the different sizes. In general, every truck brand will make 1/4-inch-scale trucks, which usually start at 5.0″ and get bigger by 1/4″ each time (i.e: 5.0″, 5.25″, 5.5″…). Both Independent and Thunder use the metric system to name the size of their trucks. For example, “129” is the hanger width in millimeters. 129 A 5.0″ hanger truck is the same size as an independent truck.
But here’s the thing: they won’t be exactly 129mm, and Thunder is even more confusing because their 5.0″ truck is called “145,” even though it doesn’t measure 145mm. Independent and Thunder didn’t make a truck for the 8.25″ deck for a long time. Instead, you had to go up or down a size, which wasn’t ideal. But since the 8.25″ deck size is still very popular, they both came out with new trucks in 2016 to fill the gap. Both the “144” from Independent and the “148” from Thunder have 8.25″ axles.

Venture, Royal, Krux, and Venom, among others, use the inch scale, which goes from 5 inches to 5.25 inches, 5.5 inches, or even more. But be careful. Royal makes a truck that says it is 5.5″, but the hanger is more like 5.8″, and the axle is 8.75″. Venture doesn’t make 5.5″ trucks right now, but they do make 5.8″ trucks with 8.75″ axles. The table below shows how we changed them.
When it comes down to it, the size naming system isn’t that important because every truck is roughly 1/4″ scale. All you need to know is what size deck you have, and the table below will help you figure out what size truck you need.
Then it’s up to you to try out the trucks and figure out which ones give you the best ride. To make it easier for you to choose the right size truck, we have put them into groups based on the size of their decks. Just use the “Your Deck Size” filter on the Truck category page to find the right group.

Conclusion

The most important part of a skateboard is its trucks. It lets a skateboard go on roads or in parks. To avoid a lot of problems, it’s very important to have a good set of skateboard trucks. You should choose the truck size that fits the size of the deck on your board. It shouldn’t go too high or too low for your deck. You can use the width of the hanger or the width of the axle to measure the trucks.

Choosing the right height for a street skateboard has its own benefits, so a skateboarder should be smart about it. Because the streets are very different from skate parks, the experience will be different. The heights of your wheels are also affected by how tall your trucks are. Make sure that you have the right trucks and the right size wheels.

Trucks that are lower should never have bigger wheels, because that will cause wheel bites. Also, high trucks will make you less stable and let you do Ollies with more freedom. The size of a high truck is perfect for tall people and experienced riders.

How to finger skateboard?

Fingerboarding is a fun mini-sport in which you use only your fingers to “ride” and do tricks on a small skateboard. To ride a skateboard, you have to go to a skate park, but with a fingerboard, you can practice and show off skating tricks with nothing more than a small fingerboard that fits in your pocket. Once you know how to move the board with two fingers, simple tricks will come naturally to you, and you’ll be ready to show off your more advanced skills in no time.

Getting the Basics Down

1.Buy a good fingerboard that fits your hand size well.

Fingerboards are like skateboards in that they come in many shapes and sizes. Look around for a style you like, and try it out by putting your index finger and middle finger on the front and back of your lips. If it doesn’t feel like too much of a stretch, you should be fine on the board. [1] If you want to be sure that your fingerboard is the right one for you, roll it back and forth to see how the wheels work. To test how it moves, push down on the front, back, and both sides. As a beginner, all you need to worry about is how the board feels to you.

2.Put your index finger in the middle and your middle finger on the back end.

Fingerboarding is all about how your fingers are placed. Put your index finger in the middle and rest your middle finger on the back edge of the board. The index finger acts as a balance to keep control of the board, while the middle finger presses down to launch the board up and do tricks.

Again, the most important thing is that your fingers feel good here. If you find that having three fingers on the board makes it easier for you to control it or that switching the fingers makes it easier for you to do tricks, you should definitely make some changes.

3.Turn the board by pressing down on the back lip.

On a flat surface, move the fingerboard forward with your fingers and press down with your middle finger on the back lip to lift the front wheels into the air. You can turn the board by twisting your fingers in the direction you want to go.

Do this a few times until you can do it without even thinking about it. This is a basic move that will help you in all the other skills you learn.

 

4.Try a manual by lifting the front of the board while moving it forward.

Press down with your middle finger on the back of the fingerboard to lift the front, and keep pressing down on the back to keep it moving forward. The board will stay at an angle, and you can land the trick by pressing down on the front with your index finger.

This is almost the same as turning the board, except you keep moving the board forward instead of turning it.

Learning How to Do Air Tricks

1.To do an ollie, push down on the back of the board and lift it into the air.

Put your middle finger on the back lip and your index finger in the middle of the board. Then, press down on your middle finger to lift the front wheels. Press down hard on the back of the board quickly to push it into the air. Use your middle finger to keep the board balanced. The board will fall and land with all four wheels on the ground.

Ollies are easier to do when you have some speed, but you should practice first without moving the board.

Some people like to put their middle finger closer to the nose lip of the board because it gives them more control in the air.

2.To do a kickflip, do an ollie and then slide your index finger off the side of the board while you’re in the air.

Do the same thing you did to do an ollie, but quickly slide your index finger off one side of the board while it is in the air.

The board will flip over once while it’s in the air and land right-side up.

When the board comes down, use two fingers to press down on the top and land it successfully.

3.To do a heelflip, bend your middle finger at an angle and slightly curl your index finger.

Launch the board into the air by putting your middle finger on the back lip and your index finger just behind the bend in the front lip. Flip the nose away from you by slightly curling your index finger. Once, your board will turn sideways and move away from you. Then, you’ll catch it and land it.

You might find it easier to do this if you tilt your board toward you before you throw it into the air. This makes it easier for your index finger to curl toward you.

Getting Down to Business

  1. Use your fingers to keep the board balanced as you do a basic 50-50 grind on a rail.

Do an ollie, then catch the board and land it right on a rail. You can use a fingerboarding rail that is made just for you, or you can use the edge of a table or a piece of wood. Use light pressure from both fingers on each side of the board to keep it balanced, and move it forward to the end of the rail. If your hand and fingers are flat and parallel to the top of the board, you may find it easier to stay balanced.

Before you try to ollie onto a rail, you can find your balance by putting your board right on the rail.

2.Do a 5-0 by ollieing onto a rail and then manuallying off the rail.

This grind is a little harder because it uses three tricks at once. Do an Ollie on your board, and instead of using both fingers to land it on the rail, just press down with your back finger. Your board will land at an angle on the rail. Keep the manual going by keeping a slight amount of pressure on the back, and then land the trick by putting your front finger back down on the front lip.

Put the board on the rail without doing an ollie and then try to do a manual to practice this trick. It’s harder than doing a manual on a flat surface because the only thing that will keep you stable is the center of the board, not the rear wheels.

  1. Do a nose grind by doing the manual backwards while pressing on the front.

When you Ollie your board into the air, instead of putting pressure on the back like you would for a 5-0 grind, bring your index finger to the nose and press down to lift the back up. Your board will be angled at the back instead of the front, and you can ride it to the end of the rail, where you will put pressure back on the back to land the board.

 

Why is Your Toaster Oven Smoking & How to Fix It?

Why is Your Toaster Oven Smoking

Smoke rising from your toaster oven might be alarming, but the issue is typically simple to resolve. Learning how to operate and maintain your toaster oven correctly can help you avoid it smoking again. It’s usually simple and fast to fix a smoking toaster oven.

 What’s Smoking in Your Toaster Oven?

Food splatters, dust, or even cleaning residue might be causing your toaster oven to smoke. When they are new or haven’t been used in a long time, toaster ovens may also smoke.

Grease and Oil

Grease and oil may spray in the toaster oven while cooking fatty meals. Your toaster oven may begin to smoke if grease or oil comes into contact with the heating components.

Covering meals with tin foil or an oven-safe lid is the best approach to reduce the odds of this occurring. This will assist control oil and grease spatter so it doesn’t come into contact with the hot components.

The accumulation of oil and grease in your toaster oven may be avoided by cleaning it on a regular basis. After the oven has cooled fully, wash off the rack and the inside with warm water and soap.

Food Scraps

Because there are particles of food in the bottom of the oven, your toaster oven may be smoking. The simplest approach to avoid this is to prepare your meal on a tray or baking sheet. Food should not be placed directly on the rack of the toaster oven.

If there isn’t enough room between the heating source and the food, it might become trapped. Make sure there’s enough space above your meal to keep it from touching the hot element.

After using your toaster oven, let it cool fully before cleaning it with soap and warm water. It’s a lot simpler to clean now than it is after it’s set for a while and hardened.

Solvents for Cleaning

This might be the source of the smoke if you’ve just cleaned your toaster oven. When heated, certain cleaners might leave a residue that will smoke.

Cleaning your toaster oven is typically as simple as using soap and water. If you’re using other solvents, be sure to rinse thoroughly with a moist towel afterward. This will remove the majority of the residue, preventing your toaster oven from smoking. 

The Toaster Oven was put away.

If you haven’t used your toaster oven in a long time, it may start to smoke. Depending on how long your toaster oven has been sitting, it may have gathered dust and dirt.

Clean your toaster oven the first time you use it after removing it from storage. Wipe off the inside and exterior using a wet cloth. This will get rid of any debris or dust that can make it smoke.

Toaster Oven (New)

It’s typical for a new toaster oven to emit a tiny quantity of smoke. To safeguard the toaster oven until it reaches the customer, manufacturers apply a factory coating. As the coating burns off in the toaster oven, it might cause smoke and stink.

When you get a new toaster oven, give it a good cleaning with soap and warm water before letting it dry completely. Then, for five to ten minutes, heat your empty toaster oven on high. During this period, any leftover coating will burn off.

There might be a safety concern with your new toaster oven if it continues to smoke after a few usage.

Issues with Safety

If your toaster oven is smoking for no apparent reason, it might be defective. Although you may not be able to see the issue, it might be an internal issue or a wiring issue.

Any safety issues with your toaster oven are a sign that it has to be replaced. Electric shock might occur if you try to repair any electrical or internal faults with the toaster oven.

When the Toaster Oven Starts Smoking, What Should You Do?

The first thing you should do if your toaster oven begins smoking is unplug it. Then, before removing any food, let it cool fully. Allow the toaster oven to dry after cleaning it well with soap and warm water.

When your toaster oven is smoking, there is always the possibility that it may catch fire. If this occurs, first unplug it, then extinguish the flames. Use a fire extinguisher or a fire blanket to put out the flames. If you are unable to contain the fire, do not hesitate to phone 911. Safety comes first, followed by toasting!

A toaster oven is a cost-effective and efficient kitchen device. It may be used securely if you follow a few basic instructions.

Cook your meal on a tray rather than directly on the rack. To remove food, grease, and oil from your toaster oven, clean it after each usage.

Place your toaster oven where there will be enough airflow around it. When not in use, unplug the toaster oven and examine the cables for any damage or discoloration on a regular basis.

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What is mixing in music?

Don’t be alarmed if you hear this word for the first time. One of the most crucial processes in audio production is mixing. The phrase “mixing” refers to the process of combining components of different instruments to create a song.

The majority of individuals will be unaware that this procedure exists. One of the reasons is that the mixing engineers are not visible on stage. Only the performers on stage are visible to them.

Due to the emergence of new technological equipment and software, music mixing has developed.

When compared to the previous days, when you had to wait six months for the studio to give you your track after recording the song, the time it takes to release music has also decreased dramatically.

Mixing in music is the process of bringing together and musically placing different audio sources in a recording to appeal to a listener. The music becomes more pleasant and calming to listen to as a result of the mixing. A song would sound flat if it wasn’t mixed, and the instruments would sound out of place.

Just knowing that mixing is required to make a song sound great isn’t enough to communicate the idea of how it’s employed in a song. I’ll walk you through every stage of how mixing is utilized in music and audio production in this post. Let’s get this party started, shall we?

Music mixing steps:

Mixing music isn’t as simple as pressing a button. It takes hours to go over each aspect and make sure everything is in order. Even if you spend hours creating a fantastic piece of music, it won’t sound nice if it isn’t mixed properly. Let’s take a closer look.

Organizing

Some individuals disregard the arrangement as a component of the mixing process. If you don’t have the song’s arrangement ready, you won’t be able to mix it appropriately.

When adding effects to tracks and components of a track, this would result in chaos and confusion.

This is one of the reasons why you should finalize your arrangements before starting to mix from scratch. If you keep the arrangements basic, the rest of the mixing procedure will be easier.

Raising the bar

The process of gain staging a song is also known as leveling a tune. Gain staging, also known as leveling, is adjusting the volume of each ingredient to ensure that it fits exactly in the mix.

This is where you would adjust the loudness of a vocal or an instrument to make it stand out in the mix.

When you have more than 100 tracks in your project, gain staging might be difficult. You may attack them one at a time by combining them together.

Gain staging may be easier if you started with the drums and bass and worked your way to the other aspects of the mix.

Tracks for buses

Bus tracks will be used by trained audio production experts to structure a mix. If you have roughly 15 drum parts, routing them all to bus tracks and putting effects on the bus track is preferable to adding effects separately.

If you detect any faults with particular instruments, you may correct them in their own tracks. Bus tracks may be used to route and arrange all of the other tracks. When working on a large project with, say, more than 100 songs, this saves time and energy.

Compression

Compression is a technique for reducing the loudness dynamics in a music or audio recording. In music, some components or instruments may have a greater volume in one area of the track and a lower volume in another. This may be rectified by employing a compressor to bring both the higher and lower volume sections to an in-between level, allowing the sound to flow properly throughout the song.

In today’s mixing environment, there are so many different methods of compression. Some individuals prefer bus compression, while others prefer side-chain compression.

Even though audio engineers’ tastes vary greatly, when compressors are applied, the resulting song’s quality always stays pure.

Using compression extensively will also harm the audio track by making everything sound flat without any dynamics in the song. If you’re new to mixing in a song, mild compression on all elements is a good place to start.

Reverberation

The space around a sound is referred to as reverb. This can be explained by the fact that the same sound might be perceived differently in various rooms and environments.

This effect is intended to give an instrument or even a vocal a more natural sound by adding a distinct feel to it.

There are so many different sorts of reverbs to choose from while mixing. Short-tail reverb and long-tail reverb are two examples. The room size choice is a key feature of reverbs.

In audio production software, you may alter the room size and depth to get the best possible outcome.

 

Waiting time

This is a typical sound effect that may be heard in practically every song. Delay may be utilized to give an instrument more room and convey its individuality into the song.

In a song, a standard recorded instrument or vocal will sound dry and devoid of any atmosphere.

Delays may be found being creatively employed to shift the vocals around in a song when a certain phrase has to be emphasized again and again.

Stabilization

The meat of the mixing process is equalization. Even if you omit one or two steps, you’ll have an acceptable mix if you do both gain staging and equalization. Equalization is a technique for manipulating the audio spectrum to provide the greatest sounding audio for a song or piece of music in a project.

While playing all of the instruments simultaneously, equalization helps you to fit several instruments into the audio spectrum without generating problems. This is one of the tricks orchestras employ to accommodate several parts into a mix.

 

Panned

This is one of the most underappreciated approaches in music production. Panning is nothing more than a split second of sound in the stereo field’s left and right channels. This is seen in a headset.

To sound balanced, each ingredient in a song is put at different points in the mix. This is frequently done to give each instrument and element in the song more clarity and space.

Because every music was in mono before stereo was invented, panning had no influence on the mix. Every music was created in stereo in a 3D sound world, with panning on one axis and frequency spectrum on the other.

Creating an export

This is the final phase in the music-making mixing process. There are a few things to bear in mind before exporting the track for mastering. Gains beyond -6db should be avoided in your master track.

This will offer your mastering engineer plenty of room to work and boost the volume even further.

Always export in WAV files of the greatest quality, rather than other file formats, when exporting. This will enable you to make further mix modifications throughout the mastering process.

Is it necessary to mix your music?

You should not mix your music for commercial release if you have no expertise mixing music. It’s a good idea to mix your music if you’re learning audio production.

You will also learn the finest methods for combining with adequate training.

 

How crucial is it to mix a song?

The most crucial phase in the creation of a song is mixing. With the right blending skills, even a bad artist might appear to be a professional. Mixing is a post-production tool that helps to compensate for anything that was missed during the studio recording process.

 

What makes music well-mixed?

Everything from the bass to the treble should be in a decent sound space in a good mix. In a proper blend, there is no such thing as too much of anything. A faulty mix, on the other hand, will contain an incorrect frequency of sounds that can irritate your ears.

 

Is it difficult to combine music?

Mixing music is not difficult, but mixing music of better quality is difficult, as it takes years to train our hearing to detect and correct resonances in a mix. Mixing as a career is really difficult if you don’t practice.

Final Thoughts

Audio mixing is an important aspect of a musical track’s arrangement. If you’re going to produce a song, spend as much time as possible mixing it properly, just like you would while recording a song.

The outcome of a music production endeavor is heavily influenced by audio mixing. I hope this essay clarifies why mixing is necessary and how music is created in the studio.

Understanding the importance and purpose of mixing in music will encourage you to put more money into it and hire skilled mixing engineers to help you achieve your production goals.

 

How to Connect Amazon Fire Stick to Surround Sound?

The Amazon Fire Stick.

You can use the Amazon Fire Stick to watch TV and other media from your own home. It is a small and easy-to-carry device.

Small, like a USB stick, it can connect to a lot of channels, like Amazon Prime Video, YouTube and Netflix. You can use it to watch these things on your computer. You can also use different apps. The Fire Stick is also very cheap, making it a good thing to have.

A lot of people want to connect this Fire Stick to their surround sound system, but they have found it hard to do so. Because this detailed guide will help you through the process, that’s a good thing.

Surround Sound is a type of music that is played in the background

Surround sound is a way to improve the sound quality of a movie or TV show by putting a lot of speakers around the people who are watching or listening. This immerses the listener in the sound, giving them a more complete and realistic picture of the sound. By improving the sound quality, movies and TV shows can be a lot more enjoyable to watch at home.

Set up your Fire Stick and connect it to your TV.

The set up isn’t too difficult. When you first plug your Fire Stick into your TV, you need to use the HDMI port. As soon as you turn your TV on, you’ll be welcome. Next, your Fire Stick will look for Wi-Fi networks to connect to. As soon as you pick the network you want to use, you will need to enter its password.

Next, you will have to sign up for Amazon. If you don’t already have an Amazon account, you’ll need to make one to buy things. Once this is done, you will be able to choose how much security you want for your kids. To change your preferences after this, you can do what you need.

Afterwards, a tutorial will show you how to use the system, and it will show you how to use it step by step. If you don’t know how to use the Amazon Fire Stick, you should look at this guide. After you watch this, you should be able to use your Fire Stick.

You can connect your Amazon Fire Stick to surround sound by following these steps:

A receiver with an HDMI arc can be used to connect a TV and an Amazon Fire Stick. This is the easiest and fastest way to do it. Next, all you have to do is plug the Amazon Fire Stick into an HDMI port on the receiver and turn on the TV. This method should work. Even if it doesn’t work, there are other ways to connect your Amazon Fire Stick to surround sound if it does not work.

It might be more difficult to do this if you don’t have an HDMI port on your TV set. Then again, if you buy an HDMI extender, you can still connect your Fire TV Stick to your surround sound. There are often HDMI extenders that come with the Fire Stick.

The same thing goes if you have lost your HDMI extenders or don’t have one. You can buy them online for a reasonable price. The HDMI extender is all you need to do after you get one. Connect the extender to the input port on the receiver.

As a result, this method is better for your Wi-Fi than other methods. This is because it will keep your Amazon Fire Stick away from other devices. This should let you connect your Fire Stick to your surround sound and keep watching TV.

If you don’t know what some of the parts of this system are, look at the subheadings below for more help.

The HDMI extender.

HDMI extenders are devices that can be used to move video signals from a source to a TV. HDMI extenders are mostly used to connect devices.

Receiver

AV receivers are parts that make sound bigger, so it can be played through speakers.

Connecting your Amazon Fire Stick to a Soundbar:

A soundbar is a small device that has a lot of speakers inside. Make sure you have a Fire Stick. You may want to connect it to your sound bar. Make sure you have a thin cord that comes with the Fire Stick. Plug the USB adapter end into a power source that is near the soundbar.

Then, connect the Fire Stick to the HDMI port on the back of the soundbar. When you connect your soundbar to the HDMI arc on your TV, you can use the HDMI out port to do it.

Change the input sources on both your TV and your soundbar so that they can talk to each other. This will make sure that they can hear each other. In the end, you will be able to watch TV after you connect the two devices.

Last thoughts

A good idea is to buy an Amazon Fire Stick if you like to watch a lot of videos and other things on the internet from your home. Their portability means that you can stream from a lot of places, so you can watch your favorite TV shows even if you’re not at home.

If viewers want to connect their Fire Sticks to surround sound systems, it makes sense that they will want to do so. It can make their viewing experience more enjoyable and immersive.

This can be done with some ease if you follow the steps above. If you’re still having problems with this, you might want to contact Amazon’s device support team to see if they can help.

how fast can a skateboard go?

If you’re wondering whether or not to ride a skateboard across town or on your daily commute, you may be interested about the top speed a skateboard can reach.

The average skateboard speed is roughly 9 miles per hour when all talents, terrain, and configurations are considered. Skateboarders often go at speeds of between 5 and 12 miles per hour. Experienced skateboarders often go at an average speed of 7–8 mph on 1-2 mile routes that are perfectly flat. A skateboard’s typical cruising speed is between 5 and 7 miles per hour (mph).

The average speed you can get on your skateboard is heavily influenced by the following variables:

  • *Riding surface and environment*
  • Your skateboard configuration

Real-world examples of common skateboarding speeds
Here are a few real-world examples of skateboarders’ average speeds as determined by authorities:

– The following is an example of a somewhat skilled skateboarder using soft wheels: 7.5 mph
– The two-mile commute to school takes 10–15 minutes at an average pace of 8–12 mph.
7 miles per hour for the 7-mile journey to the beach
– On flat terrain, the average speed for a 10-mile round trip is 5 to 8 mph.
– At UC Davis, the average skateboard speed was 9.7 miles per hour.
– Longboards may readily be pushed at speeds of 8–9 mph.
– At speeds ranging from 7.5 to 12 mph, pushing hard on a skateboard equipped with Swiss Ceramics bearings.

 

The effect of topography on the average speed of a skateboard

The surface and environment in which you skateboard have a significant impact on your average skateboarding speed. Because you must avoid every crack unless you are skilled enough to jump over them, traveling on worn-out urban sidewalks may slow your average speed by up to ten miles per hour.

Traffic, bad roads, curbs, and stairwells may all contribute to your time being wasted. Additionally, stop signs and traffic lights must be considered. When a skateboard commuter observes the laws of the road, he or she may often traverse one mile in roughly eight minutes, averaging 7.5 miles per hour on the skateboard.

The quantity of flat, uphill, and downhill sections on your skateboard path also affects the average speed you can attain.

What effect do riding abilities have on the average skateboard speed?

On a skateboard, the average speed you can achieve is directly related to your riding talents. During the most of your time learning to skateboard, you’ll be moving at a walking speed. As you go, you’ll get closer to (and sometimes even surpass) the speed of a bicycle. Additionally, once you’re moving, you’ll be able to accelerate at breakneck speeds.

Riding talents will be even more critical in densely populated urban areas with uneven and broken pavement than in rural areas. Generally, a more proficient rider will be able to ollie or dodge obstacles with relative ease. As your skating talents improve, you should anticipate an increase of 1-2 mph in your average skateboarding speed in an urban environment.

Additionally, while traveling a greater distance on flat ground, your average skateboard speed is determined by your pushing skills, which are described as the intensity, effectiveness, and frequency with which you push your skateboard. Your efficacy is determined by your ability to balance and steer efficiently with your non-kicking foot, the force with which you kick the ground, and the length of time your foot is in contact with the ground, among other criteria. Strong and durable pushing abilities may rapidly boost your average speed by a significant amount.

The next section discusses the influence of setup on average skateboard speed.
A third critical factor affecting your average skateboard speed is the configuration of your skateboard.

Larger wheels equals more speed

When it comes to skateboarding, wheels are necessary for increased speed. The larger wheels roll faster than the smaller wheels. Additionally, softer wheels provide greater grip and absorb shocks from uneven terrain significantly better than harder wheels. As a consequence, although softer wheels roll somewhat slower, they offer cushioning and make it easier to roll over obstacles, letting you to cover more distance in less time overall.

For urban mobility, wheels with a diameter of 65mm or more and a durometer rating of 78A to 85A are often the ideal option. Orangatang’s 4President 70mm 80A is a very popular choice for shooters of all skill levels.

Longboards designed for increased speed
If you’re only looking to use your skateboard for distance commuting, choosing for a longboard rather than a standard skateboard allows you to choose a configuration with bigger, softer wheels – street skateboards, on the other hand, often have small, hard wheels that are ideal for tricks.

Longboards glide over asphalt far more swiftly and effectively, needing less effort, and they roll effortlessly over stones and cracks. Additionally, they are larger and more stable at high speeds. With enough effort, a longboarder may reach an average speed of 8-9 mph – approximately 1 mph faster than a street skateboard.

Longboards, on the other hand, are less maneuverable in crowded urban situations, less portable, and less “trickable” than street skateboards. Another way to increase your average speed is to replace your standard skateboard’s wheels with bigger, softer ones. You may need to use risers to avoid wheelbite.

Increased speed is possible due to improved bearings.
Bearings are another aspect of your setup that may significantly affect your average speed. When all other variables are equal, better bearings may result in significant speed gains. If you replace your original bearings with Swiss or Ceramics bearings, you may notice an approximate 1 mph boost in your average speed.

If you don’t want to spend the money on high-end skateboard bearings, cleaning your existing ones may help you increase your speed. See How to increase the responsiveness of your board.

Is skateboarding more efficient than jogging as a form of transportation?
Regular running speeds range between 4 and 6 miles per hour on average. Skating moves at an average pace of around 9 miles per hour (between 5 and 12 miles per hour). Pushing speed on a longboard is around 8-9 miles per hour. As a consequence, skating and longboarding are much faster than running.

Is it true that skateboards outperform bicycles in terms of speed?
Skateboards are not faster than bicycles, which average over 11 mph and are thus more efficient (vs 9 mph for a skateboard). Competent skateboarders with strong pushing skills, on the other hand, often ride at speeds comparable to or faster than the average commuting bike.

How Does a Hoverboard Work?

Hoverboards are causing a stir in the media.
Hoverboards, or more specifically balance boards, self-balancing scooters, or Segways without handlebars, were one of the most popular items on the market during the recent holiday shopping season. Their infamous reputation for exploding lithium-ion batteries and having unstable control has been brought to light in recent news stories. The question remains, what is the precise issue with these gadgets being labelled as “unsafe for human consumption?” Is it harmful to use these products? Has the public’s perception of them been damaged as a consequence of negligent parents buying toys for their children that had as much stored potential energy as an average stick of dynamite? We discovered that the case consisted of a combination of the two, which is usual in most discussions. As a result, what precisely do you need to know before investing in a hoverboard is covered in this article.

Who Can Use a Hoverboard, and What Is Its Purpose?
Swiveling frames in the centre of self-balancing boards enable them to maintain their equilibrium on their own. The electric motors and sensors that are utilized to determine wheel speed and tilt angle are actually contained inside each and every individual wheel on the vehicle. Data collected by the wheels’ tilt sensors is sent to a gyroscope, which in turn sends it to the logic board, which guarantees that the board stays upright at all times. There are switches beneath each foot pad, and pressing them activates an infrared LED light, which in turn triggers a sensor to detect the foot pad’s position. When the rider’s feet remain level on the ground, the LED remains lighted, communicating to the logic board that the motors should not be engaged in that situation. In response to the rider leaning forward, the switch turns off the LED light, and the sensor sends a signal to the logic board, directing it to rotate the wheels in the desired direction. Due to the fact that the motors are fully independent of one another, a cyclist may really ride in circles in place. BestElectronicHoverboard.com has one of the most comprehensive explanations of how they work, and although it is not the website we expected, it is nevertheless a very informative page on the topic.

In order to reduce heat, the lithium-ion batteries and the logic board are often placed on opposite sides of the hoverboard, as seen in the illustration. Some stories have surfaced of boards catching on fire while being ridden; these are most likely the consequence of insufficient battery positioning and insulation. The insides of inferior hoverboards have been shown to be a tangle of wires with nothing holding the battery in place when they have been dismantled. Safety rules apply to the different components of hoverboards, but the boards themselves are not subject to any restrictions at this time. Following is a detailed walkthrough of how to build a popular hoverboard model.

Take a Test Drive and See What You Think!
When the good people at AlienWheels were kind enough to provide us with one of their Alienboard BatWings for testing, we were pleasantly surprised by how well it worked out of the box. Despite the fact that it is more expensive than the majority of hoverboards now on the market, it has been certified by the CE, FCC, and RoHS. BatWings are becoming more popular, and one of the things contributing to this is the Samsung lithium battery. A vast proportion of the low-quality hoverboards that are catching fire are equipped with battery packs that are poorly manufactured and uncontrollable by the manufacturer. Our hoverboard did not explode into flames when we left it charging overnight once, which we were pleased to discover (Please, do not attempt).

We rode the BatWings really vigorously for extended periods of time without experiencing any overheating.. We strongly advise you to do the same thing. Aside from that, the BatWings are also fitted with Bluetooth speakers that provide astonishingly good sound quality. We had a fantastic time making the other firms in our office complex envy as we strolled around the building banging Biggie Smalls, despite the fact that it wasn’t the most practical addition. For this version of the new product category, the following technical standards are required of the manufacturer

What can be done to improve the quality of future designs?
With their small wheels and absence of any kind of suspension, hoverboards do not operate well in the open air or on rough terrain. You can find yourself flying off your board if you’re riding at a fast rate of speed through fissures in the pavement, uneven sidewalks, or even stones. In order to do this, hoverboards will either need bigger wheels and tires or some kind of suspension. As a result of the manner in which these boards work, both of these problems are difficult to deal with. Increased horsepower will be necessary to move larger wheels and tires forward, since the required torque will be greater with larger wheels and tires.

These circuit boards seem to have already surpassed their breaking limit when employed in their current design, and the addition of more powerful batteries may result in even more explosive contraptions. Improving the stability of the sensors is a difficult challenge, since the sensors must maintain constant stability in order to keep the board balanced throughout operation. To prevent the footpads from moving about while the rider bounces around, a stable axis must be given for the platforms on which the rider’s feet sit. If the footpads move around, the rider will experience an uncomfortable motion.

The bulk of these troubles, on the other hand, are caused by the batteries in some way or another. Due to a variety of factors, many similar products “demand” just 90 minutes of charging time, but others need several hours of charge. Good luck to us if we are able to make it through this ordeal. A device to avoid overcharging is required for these little headless Segways, and it blows our brains that such a high-priced item does not come equipped with one. To make a long story short, please someone, do us all a favor and create a better board as soon as possible. It is not going to be tough.

Hover Boards can go up to 15-20 kilometers on a single charge while traveling at 11-12 kilometers per hour on quiet roads. It takes 2 hours to charge from zero to full capacity, and it costs $200-300. It can carry 90-95 KG.

For those considering purchasing one, seek for high-quality models that have…

A better rim should be placed over the wheels since putting your feet on the rim will aid in keeping the wheels steady.

Since some batteries have exploded as a result of inadequate insulation, it is important to thoroughly review the battery’s safety standards before using it.

Improvements in software and logic programming will allow you to make full use of the sensors and have a more accurate device. Due to the fact that the data flow should be in real time for the best outcomes, make sure there are no delays.

-Moving large wheels requires more torque and power than moving small wheels. If they are too small, they will be unable to support the weight, which will result in sluggish speed and power management.

How do you stop on rollerblade?

If you’re not used to inline skating, it can be hard to stop when you start. By learning how to use the brakes and other simple stopping methods first, you can improve your skills. Then, try intermediate and advanced ways to stop. Wear your helmet and pads, and skate in safe places, no matter what kind of stopping method you use, to keep yourself safe.

Putting on the Heel Brake

1.Lie down on your back with one leg stretched out in front of you. Bend the other leg as if you were sitting down.

Rollerblades do not have brakes in front like roller skates do. They are instead on the back of the boots, like on roller skates. Most of your weight should be on one leg, so bend that knee as if you’re about to sit down. Take one of your legs and move it in front of you, but keep the other one in the same place.

To get used to shifting your weight while skating, try scissoring your feet back and forth a few times.

2. With your front foot, press the heel brake against the ground.

If you need to, move your foot forward a little more and let the heel brake touch the ground. So, apply firm pressure if you want to stop quickly or gentle pressure if you want to stop slowly.

• As you skate, practice braking slowly until you get used to the movement. Then, you can use the brake to stop when you’re going fast, so you can.

3.Keep applying pressure until you come to a full stop.

Firm pressure will make you stop more quickly than light pressure will make you stop more slowly. Keep putting your heel down on the ground until you come to a complete stop, then stop.

It can also be a good idea to use your brake, because it can make a squealing sound that can alert people who are nearby. This can help you avoid a collision in some cases.

Stopping with Beginner Techniques

1.Skate on grass, dirt, or gravel to slowly slow down.

Skate on a patch of grass, dirt, or gravel if you’re going very fast and haven’t figured out how to stop yet. The rough surface will make you slow down over time until you come to a complete stop.

• This is called “running out.” Running out can also help you slow down and return to the pavement when your speed is at the right level.

Skating on grass is a good idea because it will hurt less if you fall than if you fall on concrete.

2.In this step, skate toward a wall with your arms straight out in front of you.

When you hit the wall, use your hands to softly push yourself backwards. Turn your head to the side so that you don’t hit your face, too. For any speed, this stop works. If you’re going fast, be careful!

Then, you could skate toward a railing or stairs to stop yourself, if there is no wall near you.

You could also skate toward your friend or family member to slow down. It’s important that you tell them before you skate into them, like by saying, “Skating into you to slow down!”

3.Use the plow stop or v-stop to slow down a little at a time.

As you skate, spread your legs out wider than shoulder-width apart. When you stop, turn your toes in toward each other. As this slows your momentum, you may fall forward. You should brace yourself for this when you do this. Your skates might also hit each other.

As you skate backwards, you can also use this technique. You can turn your heels in toward each other.

4.When you can’t stop, learn how to fall safely in case you can’t get back up again,

Falling safely will help you avoid getting hurt, so be aware of how to do it. People who are about to fall should bend their knees. They should try to stop themselves with their elbow or knee pads instead of their hands, which could break their wrist or cut their palm. [7]

If you can, try to fall on some grass or sand. This will be a lot less painful than falling on concrete, but it will still hurt.

Stopping with Intermediate Skills

1. Make sure you spread out your arms, and use the wind to slow down.

This is called windbreaking, and it can help you slow down if you’re going too fast. If you want to stop completely, you can windblock and use another method, or you can just glide to a stop after slowing down your speed.

If it’s windy and you’re wearing something that will get caught in the wind, this works best.

In this case, don’t use this method.

2. Make sure you widen your stance and spin around 180 degrees to make a showy stop.

Make sure your skates are wider than shoulder-width while you glide. As you walk, keep your toes pointed in the direction you want to go. Then, move your upper body and hips in the opposite direction so that you turn 180 degrees in one direction, too. When you spin, you will slow down your speed and bring you to a complete halt. [9]

• Start by skating slowly to get used to this stopping technique. Then, when you’re comfortable with how it moves, try it at a faster speed.

If you’re going quickly, lean forward a little after you spin around. This will help you not to fall backward.

3. Try the slalom stop to slow down and stop with style.

Turn to the left, then to the right, very quickly. This will slow you down very quickly and make you stop.

• This works well when you are moving quickly and need to slow down or control your speed.

Trying to be more advanced stops

1. Try ramming the curb for a quick way to stop.

Skate toward a curb or step and lift one skate up so that the middle of your wheels are level with the curb, then skate away. There, step or bang your skates against the curb to stop yourself. You don’t want to trip or fall forward if you brace yourself for the bump from the curb.

Be aware that this can damage your skates if you do it a lot. Use this method only when you need to stop quickly.

Use a T-stop to quickly stop.

With your toes turned to the side, drag one foot behind you. You should make sure that the wheels on your back skate are not in line with your front skate or the direction you are going. With your back foot, press down on it to slow your momentum and bring you down to a stop.

Toe drag: When you only push one side of the front wheel against the ground to stop, this is called toe drag.

They can damage your wheels if you use the T-stop and toe drag too often, so be sure not to do that.

3. Use the hockey stop to stop quickly when you’re making a sharp turn and need to stop quickly.

Power slides are another way to stop. While moving forward, make a quick turn to the left or right. Then slide sideways until you stop. Lean away from the direction you are moving to keep your legs bent. The best way to improve your balance is to keep your body as low as possible.

• This stop works well on surfaces that aren’t too rough, but it takes a lot of practice to get the hang of.

As you move slowly, it is actually more difficult to stop. You almost have to jump into it.

4.Step forward or backward to stop yourself from moving.

These are called “stepping stops.” You pick up your skates and walk a few steps in the direction you are going without moving forward. It might help to lift your right foot up for a few seconds and then put it down again. Lift up your left skate for a few seconds and put it down on the ground, then. Do this until you can glide to a full stop.

• You can use this method to slow down as you move forward or backward.

5.Lean back to stop with both brakes for the method used by Wile E. Coyote, like he did.

This is an advanced way to make a very quick stop that might make you think of a cartoon. Skating forward, lean back so you can apply pressure to both heel brakes at the same time, which will help you stop. Do this and be ready to move forward if you’re going very fast.

How Do Speakers Work

How Do Speakers Work

ORA’s experts break down a studio staple.

Take a look around the space where you work.

Every studio has a piece of equipment in common, therefore chances are you do, too.

You might see a laptop, a MIDI controller, or even a digital audio workstation (DAW).

However, the solution is a lot simpler.

Everybody knows about them.

For a long time, we couldn’t access an audio clip and capture anything in a matter of seconds.

As a matter of fact, they’re frequently overlooked…

It’s the trusty loudspeaker.

They’re the most important part of any studio, and they’re an enemy to everyone’s neighbors.

We all require headphones or monitors at some time in our music-making and listening lives.

Despite the fact that speakers are universally beneficial, little is known about how they work.

To learn more about how speakers function, we spoke with ORA Sound’s technical support team.

LANDR is based in Montreal, and they’re a Montreal-based team on the cutting edge of sound reproduction technology.

What you’ve come to know about speakers is set to be redefined by their groundbreaking approach to sound reproduction and speaker technology…

The future of speakers will be discussed in a moment.

For the time being, let’s look into how speakers and headphones work.

As a result, the next time you hear your new master’s voice, you’ll know exactly how it came to be.

How does sound work in relation to speakers?

They’re the most important part of any studio, and they’re an enemy to everyone’s neighbors.

We all require headphones or monitors at some time in our music-making and listening lives.

Despite the fact that speakers are universally beneficial, little is known about how they work.

To learn more about how speakers function, we spoke with ORA Sound’s technical support team.

LANDR is based in Montreal, and they’re a Montreal-based team on the cutting edge of sound reproduction technology.

What you’ve come to know about speakers is set to be redefined by their groundbreaking approach to sound reproduction and speaker technology…

The future of speakers will be discussed in a moment.

For the time being, let’s look into how speakers and headphones work.

As a result, the next time you hear your new master’s voice, you’ll know exactly how it came to be.

What are the parts of a speaker?

  • The cone and dust cap (which move air and generate sound) • The spider and surround (which encircle and protect the cone) (also called the suspension, these are the parts that hold the cone in place while still allowing them to move)

There are two sections to the speaker: (the parts that interact to convert electric energy into motion)

Basket • Pole and top plate • Finally, the frame that holds it all in place.”

How do speakers work?

Electrical energy is converted into mechanical energy by speakers (motion).

Sound pressure level is a result of mechanical energy compressing air, which is then converted into sound energy (SPL).

A magnetic field is created when an electric current flows through a coil of wire.

The magnetic field of the speaker’s permanent magnet interacts with an electric field generated by the speaker’s voice coil.

Different charges attract and repel each other.

The voice coil is repelled and attracted by the permanent magnet when the musical waveform rises and falls in time with the audio input.

As a result, the cone to which the voice coil is attached moves back and forth.

We hear the sound of the back and forth motion because of the pressure waves in the air.

What separates the best speaker from an ok speaker?

A speaker’s fidelity is judged by the degree to which the pressure wave it produces matches the digital signal (the sound recording) it receives from the amplifier.

It’s safe to assume that a speaker is excellent if every frequency is reproduced precisely to the listener without any alterations.

It’s probably a great speaker if every frequency is reproduced precisely to the listener without adding or subtracting any information.

The frequency response, the amount of distortion, and the directionality (dispersion) of the speaker all affect how realistic the listening experience will be.

What is frequency response and why is it so important?

At different frequencies, a speaker’s output will vary in volume.

It is common practice to conduct a sweep of frequencies from the lows to the highs and back again to see if the sound from the speaker is consistent across these ranges.

The ideal frequency response for a speaker is a flat frequency range.

The ideal frequency response for a speaker is a flat frequency range.

In other words, the speaker’s low-frequency output would be at the same volume as its mid- and high-frequency output.

As a music producer, you want to ensure that your audience hears your song as you intended.

You may be confident that your audio will sound its best on any playback system if it has been properly mastered.

Flat speakers vs. everything else

There are a lot of people who are not flat speakers.

In other cases, the frequency response is too high or too low, or there are peaks or dips that obscure or mask certain frequencies.

If this occurs, some instruments may sound louder or quieter than you intended, and the mix you worked so hard to create may be distorted.

Speakers must move swiftly in order to produce high frequencies.

Speakers need to push a lot of air to reproduce low frequencies.

This explains why high-frequency drivers such as tweeters and low-frequency drivers such as woofers have huge cones and small domes, respectively.

10 octaves (20Hz-20kHz) is an extremely large range that we can hear (for comparison, we can only see less than one octave of light).

Our hearing spans 10 octaves (from 20 Hz to 20 kHz) (for comparison, we can only see less than one octave of light).

Many speakers require two (woofer + tweeter), three (woofer + midrange + tweeter), or four (sub +woofer +midrange + tweeter) drivers to reproduce such a wide range of frequencies accurately.

How can speakers improve? Where do most speakers fall short?

The frequency response of many of the speakers we utilize is restricted.

For instance:

The bass should be audible through your laptop’s speakers!

I assume there was no thud?

The output power of most speakers is also lower.

At a social gathering, have you ever tried playing music from your phone?

For the most part, I doubt it will be an exciting event.

At a party, have you ever used your phone to play music?

I doubt it will be a lively affair.

Many speakers also add frequencies to the music that were not there in the original recording, resulting in distortions.

Even though distortion can be good (think Eddie Van Halen and tubes), speaker distortion is frequently negative unless it was intentionally added to the sound

To avoid people hearing things in your music that weren’t there when you recorded and mixed it, it’s important to make sure that your recordings are clean.

Although the frequency response and distortion of larger speakers are greater, it would be great if smaller speakers could deliver better and more accurate sound.

The future of speakers: What is Graphene and why does it improve speaker performance?

Graphene was discovered in 2004 and is a novel and exciting substance.

It considerably enhances the performance of the speakers.

As far as strength and weight go, there’s no match for graphene.

It’s perfect for high frequencies because it’s fast and light.

We at ORA have created a Graphene Oxide substance dubbed GrapheneQ especially for use in audio equipment and systems..

When the speaker is moving back and forth, the sound is not deformed or distorted because of its strength. This means that smaller and more efficient speakers may produce a higher-quality sound.

For all practical purposes, traditional speakers are less energy efficient than incandescent lightbulbs, which have long been banned.

One of the least efficient technologies that we still use today is traditional speakers. A speaker converts less than 1% of the electricity it receives into sound.

The majority of the power is transformed into heat.

Traditional speakers are significantly less efficient than incandescent lightbulbs, which have been abolished by the time you read this article!

When it comes to moving around, Graphene is incredibly light because it is only one atom thick.

Because of this, if you changed the membrane of any wireless headphone or speaker on the market today with our GrapheneQ material, you would witness a 70% increase in battery life immediately.

The future of speaker technology lies in the development of new materials and their applications.

Speakers have had efficiency and sound quality issues for decades.