Heil AD-1-I Headset Adapter W/Cap for HC use on Icom 8-pin

Heil AD-1-I  Headset Adapter W/Cap for HC use on Icom 8-pin Headset Boom-Microphone Adapter Cable, Icom, 8-Pin Round, w/Mono 1/4 in. Female Jack for PTT  AD-1 series cables are required for Heil boom microphone headset model. Each has a female 1/4 in. mono dongle connector on a short wire for PTT keying foot switch or hand switch connection. 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.