AD-1-ICM: AD-1 series cables are required for Heil boom microphone headset models including PROSET Elite, PROSET, the original and reintroduced PRO-MICRO series and BM-10 series headsets, and the legacy PROSET PLUS and QUIET PHONE.
These cables support all of the Heil Sound Headsets that feature a 3.5 mm (1/8 in. miniature phone) connector for the microphone audio. Each has a female 1/4 in. mono dongle connector on a short wire for PTT keying foot switch or hand switch connection.
If you have several brands of transceivers, individual adapter cables may be connected to each radio, so you may quickly and easily move your Heil boom microphone headset from one transceiver to another, without having to remove any connectors from the transceivers.
All Heil audio cables are wired through to support VOX operation. Heil Sound Headset Adapter Cables are available in 4-pin and 8-pin round connectors, and 6-pin and 8-pin modular-style connectors.
NOTE: The 1/4 in. stereo male plug on your headset cable does not connect to the AD-1 series cables, but connects directly to your transceiver headphone jack.