This speaker microphone features a PTT key, spring clip. A two-jack connector on the microphone "curly" lead plugs into the side of the radio.

Noise Canceling Remote Speaker Microphone reduces background noise while transmitting. When Mic attached to radio; radio main speaker disabled. However PTT is active on both Mic and on radio.

This microphone is suitable for the following handheld two-way radios:

KENWOOD: TH-F6, TH-F7, TH-G71, TH-K2, TH-K4, TK-208, TK-2100, TK-2101, TK-2102, TK-2107, TK-2118, TK-2130, TK-2160, TK-220, TK-2201, TK-2202, TK-2206, TK-2207, TK-240, TK-248, TK-249, TK-250, TK-253, TK-255, TK-260, TK-260G, TK-270, TK-270G, TK-272, TK-272G, TK-273, TK-278, TK-278G, TK-308, TK-3100, TK-3101, TK-3102, TK-3107, TK-3118, TK-3130, TK-3131, TK-3160, TK-320, TK-3201, TK-3202, TK-3206, TK-3207, TK-340, TK-348, TK-349, TK-350, TK-353, TK-355, TK-360, TK-360G, TK-370, TK-370G, TK-372, TK-373, TK-373G, TK-378, TK-378G, TK-430, TK-431, etc.

HYT: TC-268, TC-268S, TC-270, TC-270S, TC-368, TC-368S, TC-370, TC-370S, etc.