Compatiable with Retevis RT29 RT48 NR30 RB23 RT29D RT47 RT47V RT87 RT83 RT82 RB46 Ailunce HD1 HD2 HA1G HA1UV TYT MD-2017 MD398 two way radio; compatible with Motorola GP328 PLUS, GP338PLUS,GP344,GP388,GP644,GP688,EX500,EX600,PRO5150Elite,RPV3000,RPV3600,RPU3000,RPU3600,EX600-XLS, GL2000, EX560 Rainproof waterproof mic; IP54 waterproof and dust-proof speak mic for outdoor use regardless of the circumstances Kevlar reinforced cable; with durable PU coil cord; you'll totally get long term usage and tensile strength experience 360 degree rotating clip; you could clip it to our backpack straps at our shoulder to transmit clear sound; excellent use in noise environment without holding your radio for communications Built in microphone and remote speaker give you crystal call; you can communicate more smoothly with your teammates