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2. Best noise-canceling headphones, according to Consumer Reports

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

   The Sennheiser PXC 550-II is one of the highest-scoring headphones in our ratings, with superb sound quality and noise canceling. The PXC 550-II is as much as $300 cheaper than many competitors.

3. How Active Noise Canceling (ANC) Headphones Work - AOL

   www.aol.com/active-noise-canceling-anc...

   Noise canceling headphones can help you to keep your listening volume at a lower, which can prevent noise-induced hearing loss. __wf_reserved_inherit You've probably tried a pair of active noise ...

4. How noise cancelling headphones work - AOL

   www.aol.com/noise-cancelling-headphones...

   Shut out the world with the best noise cancelling headphones out there from Apple, Sony and Bose.

5. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   In 1957 Willard Meeker developed a working model of active noise control applied to a circumaural earmuff. This headset had an active attenuation bandwidth of approximately 50–500 Hz, with a maximum attenuation of approximately 20 dB. [3] By the late 1980s the first commercially available active noise reduction headsets became available.

6. List of discontinued Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_discontinued_Bose...

   The noise cancelling hardware and micro-USB supported rechargeable battery is contained with a box located near the headphone jack, similar to the QuietComfort 1. The earbuds are similar to the IE2 headphones. A button on the remote labelled "Aware Mode" reduces noise cancellation to let in ambient noise. These headphones are discontinued.

7. Talk:Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Talk:Noise-cancelling...

   Digital noise cancelling headphones reduce this problem with the inclusion of a software equaliser, also running on the DSP chip, to clean up the signal and improve the overall quality of audio produced by the headphones. Overall, Digital Noise cancelling headphones produce better fidelity sound than their analogue counterparts." Lance.