Wireless speaker how does it work




















All you have to do is connect it wirelessly to your phone or other device and have fun! There are no limits to what you can do with your speakers! You can set up your wireless Bluetooth speaker anywhere you want. Bluetooth speakers work without wires, so all you have to do is connect the speaker to the Bluetooth on your phone or tablet and listen to whatever makes you happy!

A wireless Bluetooth speaker uses the same technology as a car radio. It connects directly to the source of the sound, instead of needing wires. This allows the Bluetooth speaker to be moved around and still play, even when the source is not right next to it. Known for its tall electrostatic speakers, Martin Logan ventures into the wireless speaker space with the crescent-shaped Crescendo X. The speaker features high-quality construction with sound quality to match. The tiny Bose SoundLink Micro is cute and hyper-portable, and comes with a strap that allows you to lash it to a bicycle, backpack, or stroller.

Inputs and Outputs Most wireless speakers have auxiliary audio inputs that can be used to connect gear such as a portable audio player or a TV directly to the unit via a cable. Some speakers can even charge other devices via a USB port. Some units have connectors or docks that accept the 9-pin Lightning connector found on newer iPhones. Some new models are taking voice recognition to the next level with full-blown smart-speaker functionality.

Though many early generation smart speakers seemed to dismiss audio quality as an afterthought, many newer models feature seriously good sound.

Online Music Services In addition to streaming digital audio from a computer, some WiFi models offer direct access to streaming music services, such as Spotify and Pandora. Hands-Free Speakerphone Functionality Available only on certain Bluetooth models, this feature lets you take phone calls on your speaker. We respect your privacy. All email addresses you provide will be used just for sending this story. Sign In. Become a Member. Remember Me. Forgot username or password?

Not a member? Need further assistance? Please call Member Services at Sign in or Become a Member. Find the Best Wireless and Bluetooth Speakers We test, evaluate, and compare the latest wireless and Bluetooth speakers so that you can get sound advice.

WiFi or Bluetooth—or Both? Several of the highly rated models in our testing have both WiFi and Bluetooth. More on Wireless and Bluetooth Speakers. Illustration: Chris Philpot. Whether you're trying to create the perfect surround-sound theater at home, an outdoor sound system for a deck or patio, or you just want a decent pair of headphones that won't tangle you up every time you need to move, wireless speakers might help.

But they can have drawbacks too. They have a limited range -- a wireless speaker on the edge of the range of the sound system may not receive a strong signal or have good sound quality. Audiophiles may not find them satisfying. And even a wireless speaker requires power to operate. If that power isn't provided by batteries , you'll need to plug the speaker into a power source.

So even wireless speakers can still have wires. We'll take a closer look at the pros and cons of wireless speakers later in this article. At its most basic level, sound is one way we perceive vibrations. When an object inside the Earth's atmosphere vibrates, it pushes against and pulls on surrounding air molecules. In turn, they affect surrounding air molecules.

It becomes a chain reaction. Imagine a bell. When it rings, its surface actually flexes inwards and outwards. When the bell's surface flexes inwards, it pulls air molecules toward the surface of the bell. They pull on other molecules around them, and those pull on even more molecules. We call this area of decreasing air pressure rarefaction. Extending outward from the vibrating object is a wave of air pressure fluctuations.

If you happen to be within range of the wave -- the energy dissipates over distance -- your eardrum vibrates in reaction to the changes in pressure. Your eardrum is connected to tiny bones in your middle ear. These bones connect the eardrum to the cochlea in your inner ear.

The cochlea is filled with fluid and tiny little hairs. As the bones vibrate the cochlea, fluid flows against the hairs, which triggers nerve signals that move from the ear to the brain.

Your brain then interprets these signals as sound. Sound can travel through solids, liquids and gases. If you put your ear down against a table and have someone gently scratch upon it, you'll hear it loud and clear. That's because sound generally travels more efficiently through solids than gases. This is also why sound doesn't travel in the vacuum of space -- there aren't enough particles to collide with each other to propagate sound.

The nature of the sound depends upon how forcefully and frequently the molecules bump into each other. Molecules that really bash into each other create louder sounds -- a large mallet striking a huge gong is going to make molecules collide more forcefully than a tiny bell would.

Faster fluctuations in the atmosphere create sounds with a higher pitch than those that have slower fluctuations. The gong's sound won't just be louder than the tiny bell, but also deeper in pitch -- the bell creates faster fluctuations in air pressure than the gong does. Speakers -- wireless and wired alike -- create sound through vibrations. All it takes is a little electricity and magnetism.

A typical speaker has several parts. The part that vibrates to make the sound is called a cone or diaphragm. It's a flexible surface that can be pushed out or pulled inward by the rest of the speaker mechanism. It's the diaphragm that creates the changes in atmospheric pressure that we perceive as sound. An electromagnet called a voice coil attaches to the center of the cone.

A permanent magnet -- a magnet that keeps its magnetic field without electricity -- sits behind the voice coil on the other side of the cone. Speaker Setup — How to break in new speakers. Can Alexa Connect to Bluetooth Speakers? What is a Soundstage?

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