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

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

   Consumer Reports doesn’t test battery life in headphones, but Sennheiser says this model will run for up to 20 hours with Bluetooth and noise canceling turned on. It can be used over Bluetooth ...

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise-cancelling headphones are headphones that suppress unwanted ambient sounds using Active noise control ( ANC ). Active noise cancellation makes it possible to listen to audio content without raising the volume excessively. In the aviation environment, noise-cancelling headphones increase the signal-to-noise ratio significantly more than ...

4. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   Some headphones are wireless, using Bluetooth connectivity to receive the audio signal by radio waves from source devices like cellphones and digital players. [5] As a result of the Walkman effect , beginning in the 1980s, headphones started to be used in public places such as sidewalks, grocery stores, and public transit. [ 6 ]

5. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   QuietComfort 20. 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.

6. Bose Corp. v. Consumers Union of United States, Inc.

   en.wikipedia.org/wiki/Bose_Corp._v._Consumers...

   U.S. Const. amend. Bose Corp. v. Consumers Union of United States, Inc., 466 U.S. 485 (1984), was a product disparagement case ultimately decided by the Supreme Court of the United States. The Court held, on a 6–3 vote, in favor of Consumers Union, the publisher of Consumer Reports magazine, ruling that proof of "actual malice" was necessary ...

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