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2. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   In a noisy environment, both microphones receive noise at a similar level, but the primary mic receives the desired sounds more strongly. Thus if one signal is subtracted from the other (in the simplest sense, by connecting the microphones out of phase) much of the noise is canceled while the desired sound is retained.

3. Best noise-canceling headphones, according to Consumer ... - AOL

   www.aol.com/news/best-noise-canceling-headphones...

   In the past few years, noise-canceling performance and sound quality have improved, and the prices of noise-canceling headphones have come down. Today, several competitors rival Bose for the top ...

4. Audio headset - Wikipedia

   en.wikipedia.org/wiki/Audio_headset

   Voicetube designs are also called internal microphone design, and have the microphone housed near the earpiece, with a tube carrying sound to the microphone. Most external microphone designs are of either omnidirectional or noise-canceling type. Noise-canceling microphone headsets use a bi-directional microphone as elements. A bi-directional ...

5. 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 ...

6. Block Out the Babble with the Best Noise-Canceling Headphones ...

   www.aol.com/finance/block-babble-best-noise...

   Whether you prefer the "cone of silence" of over-ear cans or the comfort of earbuds, noise-canceling headphones will filter out the cacophony and let you focus. Block Out the Babble with the Best ...

7. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   The "QuietComfort 20" (QC20) and QC20i in-ear headphones were released in 2015 and are the company's first in-ear noise cancelling headphones. [19] It received a 2014 Red Dot Design Award. [20] Also, it received a CNET 's Editors' Choice Award of 4.5/5 points for its active noise-cancelling. [21]