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2. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Series I aviation headsets are distinguished by the clear windows on the earcups or by noting that the on/off switch and volume control are located on the separate control module. [7] Several airlines provide noise-cancelling headphones in their business and first-class cabins. Bose started supplying American Airlines with noise-cancelling ...

3. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   A20 Aviation Headset. The "A20 Aviation Headset" was released in 2010 as the successor to the "Aviation Headset X" (aka A10). [ 39][ 40] It has a claimed battery life of 45 hours (using two AA batteries) or can be powered by the airplane's electrical system. There are two versions, one with Bluetooth and one without.

4. List of discontinued Bose headphones - Wikipedia

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

   Compared with the Series II, the Aviation Headset X includes lighter speakers, a revised microphone, improved EMI shielding and an optional accessory to use the headset in helicopters. [61] [62] Claimed battery life is 20 hours. [63] The Aviation Headset X was voted the most preferred headset in Professional Pilot survey from 2000 to 2005. [64]

5. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   A headset is a headphone combined with a microphone. Headsets provide the equivalent functionality of a telephone handset with hands-free operation. Among applications for headsets, besides telephone use, are aviation, theatre or television studio intercom systems, and console or PC gaming.

6. Phone connector (audio) - Wikipedia

   en.wikipedia.org/wiki/Phone_connector_(audio)

   Commercial and general aviation (GA) civil aircraft headsets often use a pair of phone connectors. A standard 1 ⁄ 4-inch (6.3 mm) 2 or 3-conductor plug, type PJ-055, is used for headphones. For the microphone, a smaller 3 ⁄ 16-inch (0.206 inch / 5.23 mm) diameter 3-conductor plug, type PJ-068, is used.

7. Head-mounted display - Wikipedia

   en.wikipedia.org/wiki/Head-mounted_display

   Head-mounted display. A head-mounted display ( HMD) is a display device, worn on the head or as part of a helmet (see helmet-mounted display for aviation applications), that has a small display optic in front of one ( monocular HMD) or each eye ( binocular HMD). HMDs have many uses including gaming, aviation, engineering, and medicine.