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2. List of Logitech products - Wikipedia

   en.wikipedia.org/wiki/List_of_Logitech_products

   Has volume on the back of the left earcup. Mic up to mute. G35 Surround Gaming Headset 2009: 7.1: Dolby Only: No — USB: Yes: Yes: Has volume, muting and user-programmable G-keys on the side of the earcup. G930 Wireless Gaming Headset 2011: 7.1: Dolby Only: Yes: Rechargeable 600mAh Li-Ion: USB: Yes: Yes: Has volume, muting and user ...

3. List of mechanical keyboards - Wikipedia

   en.wikipedia.org/wiki/List_of_mechanical_keyboards

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us

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.

5. Wireless microphone - Wikipedia

   en.wikipedia.org/wiki/Wireless_microphone

   A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...

6. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   In the context of telecommunication, a headset is a combination of a headphone and microphone. Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as Bluetooth ...

7. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   A fiber-optic microphone converts acoustic waves into electrical signals by sensing changes in light intensity, instead of sensing changes in capacitance or magnetic fields as with conventional microphones. [31] [32] During operation, light from a laser source travels through an optical fiber to illuminate the surface of a reflective diaphragm.