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2. 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 ...

3. Audio headset - Wikipedia

   en.wikipedia.org/wiki/Audio_headset

   A Handset lifter is a device that automatically lifts or replaces a handset off/on a telephone. It is usually connected to a wireless headset and allows cordless headset use on technically primitive desk phones. Some phones only have a mechanical means of switchhook operation. The lifter allows cordless headsets to be used remotely with such ...

4. List of Bluetooth profiles - Wikipedia

   en.wikipedia.org/wiki/List_of_Bluetooth_profiles

   For example, music can be streamed from a mobile phone to a wireless headset, hearing aid/cochlear implant streamer, or car audio; alternately from a laptop/desktop to a wireless headset; also, voice can be streamed from a microphone device to a recorder on a PC. [1] The Audio/Video Remote Control Profile (AVRCP) is often used in conjunction ...

5. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   The self-noise or equivalent input noise level is the sound level that creates the same output voltage as the microphone does in the absence of sound. This represents the lowest point of the microphone's dynamic range, and is particularly important should you wish to record sounds that are quiet.

6. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   Sound that's much closer to the front port than to the rear will make more of a pressure gradient between the front and back of the diaphragm, causing it to move more. The microphone's proximity effect is adjusted so that flat frequency response is achieved for sound sources very close to the front of the mic – typically 1 to 3 cm. Sounds ...

7. Microphone connector - Wikipedia

   en.wikipedia.org/wiki/Microphone_connector

   Two pins are used for the mono headphone signal and two pins for the unbalanced microphone signal. The 4-pin XLR connector is also commonly used on amateur radio microphones, but transferring unbalanced audio instead, and using the 4th pin (with the common ground) for a push-to-talk (PTT) circuit activated by a button on the microphone.

8. Lavalier microphone - Wikipedia

   en.wikipedia.org/wiki/Lavalier_microphone

   An early use of the microphone supported by a strap around the neck: telephone operator. The term lavalier originally referred to jewelry in the form of a pendant worn around the neck. Its use as the name of a type of microphone originates from the 1930s, when various practical solutions to microphone use involved hanging the microphone from ...

9. List of microphone manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_microphone...

   Audio-Technica; Behringer; Beyerdynamic; Blue Microphones; ... The following is a list of defunct microphone manufacturers with articles. Aiwa; Altec Lansing ...