SUNDELY D-Shape Earpiece/Headset Boom Mic with VOX/PTT for Cobra Micro-Talk 2 Two Radio Walkie Talkie 1-pin D-Shape Earpiece/Headset Boom Mic with VOX/PTT for Cobra Micro-Talk 2 Two Radio Walkie D-shape headset, Boom Mic, VOX-PTT Switch, 1-pin jack MT200 ,MT525, MT550, MT600 , MT650, MT750, MT800, MT850, MT975 PR237, PR240, PR245, PR260, PR350, PR375, PR385, PR550, PR560, PR580, PR590, PR650, PR3000, PR3100, PR3175, PR3180, PR3500, PR3550, PR3575, PR4000, PR4200, PR4250, PR4300, PR4700, PR4750, PR5060 Li-3900, Li-4900, Li-5600, Li-6000, Li-6500, Li-6700, Li-7000, Li-7020, Li-7200, Li-7500