IFeng 1 Pin Covert Acoustic Tube Earpiece Headset for Motorola COBRA MT200 T270 T4000 XTL446 SX500 FV200 EM1000 FR50 Product Name---1pin Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Motorola COBRA Talkabout Walkie Talkie Two Way Radio Bodyguard FBI Security Door Supervisor. Clear Sound---Ideal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Suitable Environment---Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. With Iron Clip---Clip this hands free earpiece onto your shirt and begin using your radio device to communicate discretely and easily, whether you're in security, retail, or hospitality. Compatible Radio---* COBRA MT200, MT400, MT550, MT600, MT750, MT800, MT850, MT900 * T270, T280, T289 * T4000, T6000, T7000, T8000, T9000 * T4800, T4900, T5000, T5100, T5146, T5200, T5300, T5320, T5400, T5410, T5412, T5420, T5422 * T5500, T5512, T5522, T5532, T5550, T5600, T5620, T5700, T5710, T5720, T5725, T5800 * T5820, T5900, T5920, T5950, T6200, T6210, T6220, T6222, T6250 * T6300, T6310, T6320,T6400, T6500, T6510, T6550 * T7100, T7150, T7200, T7400, T7450,T8500, T8550