SUNDELY Military Grade Tactical Throat Mic Headset/Earpiece with BIG Finger PTT For Cobra Radio Walkie Talkie MT800 PR4700 CX110 CXT280 CX110 1-pin 122-020 Military Grade Tactical Throat Mic Headset/Earpiece with BIG Finger PTT For Cobra Radio Walkie Talkie 1-pin jack, Finger PTT, 1 spare earbud included 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