The first recorded patent for a wireless microphone was filed by Raymond A. Litke, an American electrical engineer with Educational Media Resources and San Jose State College, who invented a wireless microphone in 1957 to meet the multimedia needs for television, radio, and classroom instruction.
Esimese jäädvustatud patenditaotluse esitas Raymond A. Litke, ameeriklasest elektriinsener, koos ühenduse Educational Media Resourcesiga ja San Jose State College’iga, kes leiutas juhtmevaba mikrofoni 1957. aastal, et tulla vastu televisiooni, raadio ja õppesüsteemide kasvanud multimeedia nõudlusele.