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2. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   The QC20 model is for Android, Windows and Blackberry devices, while the QC20i is designed for Apple devices and includes volume controls on the remote. [22] 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 .

3. List of discontinued Bose headphones - Wikipedia

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

   The QuietComfort 20 (QC20) and QuietComfort 20i (QC20i, for Apple) acoustic noise cancelling in-ear headphones are discontinued. Bluetooth Headset. The first "Bluetooth Headset" model was released on 1 November 2010, using a similar design to the IE2 earphones.

4. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Bose started supplying American Airlines with noise-cancelling headphones in 1999 and started offering the "Quiet Comfort" line for the general consumer in 2000. Noise cancelling is particularly effective against aircraft engine noise. [citation needed] As a sleeping aid. Noise-cancellation headphones have been used as sleeping aids as well.

5. Best Noise-Cancelling Headphones: Here’s Where To Get ... - AOL

   www.aol.com/lifestyle/best-noise-cancelling...

   Beats Studio Pro – Wireless Bluetooth Noise Cancelling Headphones – Personalized Spatial Audio, USB-C Lossless Audio, Apple & Android Compatibility, Up to 40 Hours Battery Life – Black ...

6. US federal court orders Philips to restrict production of ...

   www.aol.com/news/us-federal-court-orders...

   April 9, 2024 at 6:33 PM. By Christy Santhosh. (Reuters) -A U.S. federal court issued a decree to restrict the production and sale of Philips' new sleep apnea machines at several facilities in the ...

7. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...