Offered here is 20 PIECES new good quality aftermarket "neck mic" with PTT Switch that works flawlessly with MOST COBRA MICROTALK ONE-PIN SERIES RADIOS such as Cobra PR240 - PR245 - PR350 - PR375 - PR550 - PR3000 - PR3100 - PR3175 - PR4000 - PR4200 - PR4250. Also fits the MRHH100 and MRHH200 radios. It is basically compatible with radios that accept the Cobra GA-EBM2 1 Pin Ear Bud. When you hit the PTT button, the supersensitive "mic" picks up vibration around your neck, amplifies and converts it into signals suitable for transmission by your radio. Surrounding noise outside the ear will NOT be transmitted, ensuring that your buddy hears ONLY you.
The "collar mic" will conveniently fits all neck sizes and delivers great sound even in noisy places. If you prefer a more comfortable "nipple," then click on this icon: