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  2. Interruptible foldback - Wikipedia

    en.wikipedia.org/wiki/Interruptible_foldback

    The IFB is a special intercom circuit that consists of a mix-minus program feed sent to an earpiece worn by talent via a wire, telephone, or radio receiver (audio that is being "fed back" to talent) that can be interrupted and replaced by a television producer's or director's intercom microphone. [14]

  3. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    Wireless microphone receiver racks backstage at a large televised music awards event Wireless microphone and radio receiver. There are many types of receiver. True Diversity receivers have two radio modules and two antennas. Diversity receivers have one radio module and two antennas, although some times the second antenna may not be obviously ...

  4. Crystal earpiece - Wikipedia

    en.wikipedia.org/wiki/Crystal_earpiece

    One remaining use for crystal earpieces is in crystal radios. Their very high sensitivity enables them to use the very weak signals produced by crystal radios, and their high impedance (on the order of 20 kilohms) is a good match for the typical crystal radio. They have also been used as microphones, with their high output requiring less ...

  5. Shure - Wikipedia

    en.wikipedia.org/wiki/Shure

    Shure Inc. is an audio products corporation headquartered in the USA. It was founded by Sidney N. Shure in Chicago, Illinois, in 1925 as a supplier of radio parts kits. The company became a manufacturer of consumer and professional audio-electronics including microphones, wireless microphone systems, phonograph cartridges, discussion systems, mixers, and digital signal processing.

  6. Kamala’s ‘audio earrings’ and all the other bogus debate ...

    www.aol.com/kamala-audio-earrings-other-bogus...

    The earpiece claim During the debate on Tuesday night, conspiracy theorists spread the baseless claim that Harris’s earrings were transmitting audio. “The VP cheated with earring headphones?

  7. Heil Sound - Wikipedia

    en.wikipedia.org/wiki/Heil_Sound

    Heil Sound Communications, Inc is an American manufacturer of professional audio equipment based in Fairview Heights, Illinois.The company was founded by Bob Heil in 1966, and is well known for inventions in live sound, the Heil Talk Box and a variety of high-quality microphones and headsets for use in commercial and amateur radio.

  8. Audio headset - Wikipedia

    en.wikipedia.org/wiki/Audio_headset

    The microphone arm of headsets may carry an external microphone or be of the voice tube type. External microphone designs have the microphone housed in the front end of the microphone arm. Voicetube designs are also called internal microphone design, and have the microphone housed near the earpiece, with a tube carrying sound to the microphone.

  9. Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone

    Shure Brothers microphone, model 55S, multi-impedance "Small Unidyne" dynamic from 1951. A microphone, colloquially called a mic (/ m aɪ k /), [1] or mike, [a] is a transducer that converts sound into an electrical signal.