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  2. 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 ...

  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. 8 white noise machines for better sleep - AOL

    www.aol.com/news/8-white-noise-machines-better...

    Hatch Restore 2. The Hatch Restore 2 is a cross between a sunrise alarm clock and a sound machine that enables you to play consistent white noise. Sunrise alarm clocks gradually emit light to ...

  6. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation ( non-ionizing "radio waves" such as microwaves ); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat. Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation ...

  7. Select and enable a New Mail notification in AOL Mail

    help.aol.com/articles/select-and-enable-a-new...

    1. Click the Settings icon | select More Settings. 2. Click Notifications. 3. Under "New Mail," select your notification option: • Play a sound when new mail arrives - Default sound.

  8. Tinnitus masker - Wikipedia

    en.wikipedia.org/wiki/Tinnitus_masker

    Tinnitus masker. Tinnitus maskers are a range of devices based on simple white noise machines used to add natural or artificial sound into a tinnitus sufferer's environment in order to mask or cover up the ringing. [ 1] The noise is supplied by a sound generator, which may reside in or above the ear or be placed on a table or elsewhere in the ...

  9. White noise machine - Wikipedia

    en.wikipedia.org/wiki/White_noise_machine

    White noise machine. A white noise machine is a device that produces a noise that calms the listener [citation needed], which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose ...