Headset Microphone H-161 D/U

The H 161D/U Headset Microphone, manufactured by Astrocom Electronics, is a classic piece of U.S. military tactical communications gear. Designed for use with the AN/VIC 1 intercom system and AN/VRC 12 series radios, it served as a standard headset for vehicle crews and ground personnel. Although developed prior to the Vietnam War, it saw extensive service throughout the conflict and remained a mainstay of Cold War era communications. Microphone (M 138/U): Close talking, noise canceling dynamic boom mic Earphones: Dual 1000 ohm dynamic earphone elements Controls: Inline chest set toggle switch with Intercom (locking), Radio Talk (momentary), and Off positions