Baofeng Uv-5r earpiece with mic has transparent acoustic tube protects your health from radio electromagnetic wave radiation. Soft silicone earplugs are comfortable and durable. Kenwood earpiece with mic has a PTT(Push To Talk) button with built-in line remote mic microphone,it's easier than ever to use your radio device for hands-free communication. kenwood radio headset compatible with specific radios from Baofeng Uv-5r 666s 777s 888s uv-5rtp,Retevis H-777 RT21 RT22,Kenwood walkie talkie Etc. Excellent for use in FBI,Bodyguard,military,nightclubs,bars,paintball,security,restaurants,hotels,bouncer,warehouses,airports,casinos,manufacturing plants,conventions and noisy environments.