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2. Audio headset - Wikipedia

   en.wikipedia.org/wiki/Audio_headset

   General 3.5 mm computer headsets come with two 3.5 mm connectors: one connecting to the microphone jack and one connecting to the headphone/speaker jack of the computer. 3.5 mm computer headsets connect to the computer via a sound card, which converts the digital signal of the computer to an analog signal for the headset. USB computer headsets ...

3. List of Logitech products - Wikipedia

   en.wikipedia.org/wiki/List_of_Logitech_products

   Part of new "Prodigy" line intended for new PC gamers, with all "Prodigy" products costing US$69.99, except the new G203 Mouse G533 Wireless Gaming Headset 2017: 7.1: DTS:X Only* Yes: Rechargeable 1100mAh Li-Po: USB: Yes: Yes: Has volume, muting, and a single programmable function key on the back of the left earcup. Recharges via USB. Pro ...

4. Dell Inspiron laptops - Wikipedia

   en.wikipedia.org/wiki/Dell_Inspiron_laptops

   3148: — [21] — this model features a HDMI port, 1x USB 3.0 and 2x USB 2.0 Type-A ports, a headphone/microphone combo (headset) port, a media-card reader and a security-cable slot. Its processors are from the 4th generation of Intel Core i3 processors with one SO-DIMM slot supporting DDR3L memory.

5. Microphone blocker - Wikipedia

   en.wikipedia.org/wiki/Microphone_blocker

   A microphone blocking plug. A microphone blocking plug is a phone connector with a microphone channel that cannot be used due to the plugged end. Some products are shipped with a female connectors (with a keychain hole, or a small strap attached directly to smartphone cases) to prevent loss when the male connector is detached.

6. Phone connector (audio) - Wikipedia

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

   The microphone generates its own voltage and needs no power. Devices that use a self-powered microphone: usually a condenser microphone with an internal battery-powered amplifier. Devices that use a plug-in powered microphone: an electret microphone containing an internal FET amplifier. These provide a good quality signal in a very small ...

7. Apple headphones - Wikipedia

   en.wikipedia.org/wiki/Apple_headphones

   The iPhone Stereo Headset was introduced in 2007 and was bundled with the original iPhone and iPhone 3G, and featured a control capsule in-line with the left earbud's wire with a microphone and a single button, actuated by squeezing the unit, which can be programmed to control calls, presentations, music and video playback, launch Siri, or take pictures with the Camera application.

8. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise-cancelling aviation headsets are now commonly available. [5] [6] In 1989, Bose Corporation introduced its Aviation Headset Series I, which became the first commercially available ANR headset. [7] Several airlines provide noise-cancelling headphones in their business and first-class cabins. Bose started supplying American Airlines with ...

9. Stereophonic sound - Wikipedia

   en.wikipedia.org/wiki/Stereophonic_sound

   Mid/side stereo microphone technique. This coincident technique employs a bidirectional microphone facing sideways and another microphone at an angle of 90°, facing the sound source. The second microphone is generally a variety of cardioid, although Alan Blumlein described the usage of an omnidirectional transducer in his original patent.