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2. List of discontinued Bose headphones - Wikipedia

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

   Bose QuietComfort 25 with mounted 3.5 mm headphone jack, and carry case. The "QuietComfort 25" (QC25) over-ear headphones were released in 2014 [47] as the replacement for the QuietComfort 15, and sold until 2019. Unlike its predecessors, the QC25s can be used (without the noise cancelling function) while the battery is dead.

3. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   In 2021, Bose released the Bose QuietComfort 45 headphones. This model introduced USB-C support for more convenient and faster charging. Bose also added a fourth external microphone to enhance call quality and integrated Bluetooth 5.1 to improve wireless range and connection stability.

4. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.

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6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

7. Bell Labs - Wikipedia

   en.wikipedia.org/wiki/Bell_Labs

   Bell Labs [b] is an American industrial research and development (R&D) company, currently operating as a subsidiary of Finnish technology company Nokia.With a long history, Bell Labs is credited with the development of radio astronomy, the transistor, the laser, the photovoltaic cell, the charge-coupled device (CCD), information theory, the Unix operating system, and the programming languages ...