KENMAX 2 Pin Full Open Close PTT Headset Earpiece for UV-5R UV-82 Puxing Wouxun BaoFeng pofung With a metal screw plug, use safety. Should not be disconnected. Robust speaker, clear and strong was interference function. Noise cancelling with boom mic microphone. Designed to work with two way radios. Dual speakers with sticker, can be pasted to inside of the equipment.