If you come across some of today’s technology, there’s a good chance that NASA used it first. For wireless headsets like this, they were used to ensure wireless communication between crew members and mission control. In fact, such technology for this to happen can be traced back to as early as the 1950s.
Take Me Out to The Ball Game: In 1951, Herbert McClelland fabricated a wireless microphone that was to be worn by umpires during baseball games. The technology that made these microphones possible would be put to good use a decade later. In 1961, NASA developed a portable two-way communication device for the purpose of space travel communication. Astronauts would use them to regularly communicate with people back on Earth. Each microphone circuit had two in-built transducers and each receiver had five transducers that were used for reliability and security.