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  2. These Wireless Earbuds Stay Charged for a Whopping 54 Hours - AOL

    www.aol.com/entertainment/wireless-earbuds-stay...

    Fact: Wireless earbuds have made our lives far easier, especially when it comes to commuting or working out. That said, there are still things about old-school wired headphones we do miss sometimes.

  3. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

    www.aol.com/entertainment/20-off-raycon-earbuds...

    These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

  4. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...

  5. Microphone blocker - Wikipedia

    en.wikipedia.org/wiki/Microphone_blocker

    A microphone blocking plug is a phone connector with a microphone channel that cannot be used due to the plugged end. Some products are shipped with a female connectors (with a keychain hole, or a small strap attached directly to smartphone cases) to prevent loss when the male connector is detached. A mobile phone charm (especially with TRS ...

  6. ‘I’ve had 16 free batteries’: This Florida woman used ...

    www.aol.com/finance/ve-had-16-free-batteries...

    Here’s how you can do the same — and not just for your car. Buy to keep. When Veitch bought her car, she knew she wanted the $3,289 vehicle to last forever. She learned all the mechanical ...

  7. Diaphragm (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Diaphragm_(acoustics)

    In the field of acoustics, a diaphragm is a transducer intended to inter-convert mechanical vibrations to sounds, or vice versa. It is commonly constructed of a thin membrane or sheet of various materials, suspended at its edges. The varying air pressure of sound waves imparts mechanical vibrations to the diaphragm which can then be converted ...

  8. Subvocal recognition - Wikipedia

    en.wikipedia.org/wiki/Subvocal_recognition

    A set of electrodes are attached to the skin of the throat and, without opening the mouth or uttering a sound, the words are recognized by a computer. Subvocal speech recognition deals with electromyograms that are different for each speaker. Therefore, consistency can be thrown off just by the positioning of an electrode.

  9. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise -cancelling headphones alongside a carry case. Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing . Noise cancellation makes it possible to listen to audio ...