Compatibility of the following radio  It requires a standard 1 pin Motorola talkabout Cobra radio  
<br />COBRA MT200, MT400, MT550, MT600, MT750, MT800, MT850, MT900
<br />Motorola TLKR T3, T5, T6, T7, T8, T9
<br />Motorola PMR446
<br />Motorola XTR446
<br />Motorola XTL446
<br />Motorola Talkabout: T5022, T5412, T5422, T5522, T5532, T5622
<br />T270, T280, T289
<br />T4000, T6000, T7000, T8000, T9000
<br />T4800, T4900, T5000, T5100, T5146, T5200, T5300, T5320, T5400, T5410, T5420
<br />T5500, T5512, T5550, T5600, T5620, T5700, T5710, T5720, T5725, T5800
<br />T5820, T5900, T5920, T5950, T6200, T6210, T6220, T6222, T6250
<br />T6300, T6310, T6320,T6400, T6500, T6510, T6550
<br />T7100, T7150, T7200, T7400, T7450,T8500, T8550
<br />T9500, T9550, T9500R, T9500XLR, T9550XLR, T9580XLR, T9650, T9680
<br />SX500, SX620R, SX700, SX709R, SX750, SX800, SX900, SX920R
<br />FV200, FV300, FV500, FV600, FV700, FV750, FV800
<br />EM1000, EM100R, EM1020R
<br />package content:1 x headset microphone PTT