The CB'ers choice. The Astatic 636L has been considered the industry standard for over 70 years. The 636L is a sound cancelling microphone that was designed for close talking handheld applications in CB, Amateur Radio and SSB communication.
The 636L is used in situations where there is high background noise levels, such as trucks. Our commercial version of this mic is used in public service agencies, such as fire departments all over the United States. The 636L has a rugged housing, polyurethane coated steel grille screen and a dependable low impedance dynamic element.