This adapter is used to convert a 1/4 inch TRS Mono to RCA primarily for PTT input on the FLEX-6X00 series radios.

The FHM-3 hand mic incorporates a high gain, wide frequency response condenser microphone element and with its ergonomic design and a low resistance PTT button.  The FHM-3 is a perfect complement to the Maestro, FLEX-3000 and FLEX-1500 software...

The FHM-3 hand mic incorporates a high gain, wide frequency response condenser microphone element and with its ergonomic design and a low resistance PTT button, the FHM-3 with the 8-pin Foster (round) connector is a perfect complement to the FLEX-5000,...