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2. Lavalier microphone - Wikipedia

   en.wikipedia.org/wiki/Lavalier_microphone

   The term referred to any small microphone that could be hooked into the buttonhole of the lapel of a coat. The lapel microphone offered freedom of movement. [2] 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 ...

3. Raymond A. Litke - Wikipedia

   en.wikipedia.org/wiki/Raymond_A._Litke

   His supervisor challenged him to invent a microphone to use in educational presentations which would be free of wires. Litke’s wireless mike resembled a silver tube with “a microphone at the top, a transmitter in the middle and its battery power supply at the bottom.” [ 1 ] It was 6 inches long, 1 inch in diameter, and weighed 7 ounces ...

4. 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 ...

5. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   Some microphones use other connectors, such as a 5-pin XLR, or mini XLR for connection to portable equipment. Some lavalier (or "lapel", from the days of attaching the microphone to the news reporter's suit lapel) microphones use a proprietary connector for connection to a wireless transmitter, such as a radio pack. Since 2005, professional ...

6. Sennheiser - Wikipedia

   en.wikipedia.org/wiki/Sennheiser

   The following year, the company introduced "Microport," a wireless microphone system for television production. In 1958 Labor W was renamed Sennheiser electronic. [ 7 ] In 1960, Sennheiser introduced the cardioid successor to its popular MD 21, the MD 421 ; this microphone was also quickly adopted for professional broadcasting applications ...

7. List of microphone manufacturers - Wikipedia

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

   The following is a list of defunct microphone manufacturers with articles. Aiwa; Altec Lansing; American Microphone; Ampex; Astatic; Brush Development Company; Dynaco ...