Retevis IP66 Waterproof Two Way Radio Earpiece with Mic,Compatible RT29 RT48 RT47 RT47V RB23 RB46 NR30 RT29D RT83 RT82 Ailunce HD1 HD2 HA1G Motorola EX500 GP328Plus Walkie talkies(4 Pack)

6 pin standard plug; compatible with Retevis RT29 RT48 RT47 RT47V RB23 RB46 RT87 NR30 RT29D Ailunce HD1 HD2 HA1G; compatible with Motorola EX500 GP328Plus PRO5150; compatible with HYT TC-380M walkie talkies; etc ^^ Ear bud style headset can block outside sound; soft earplug is comfortable even wear for a long time ^^ Crystal sound; big red PTT and sensitive mic give provided real hands free; easy to press and keep your communication private ^^ IP66 waterproof; protect your earpiece from water; you can use it even in a wet day ^^ Excellent for use in police; military; nightclubs; bars; paintball; security; restaurants; hotels; bouncer; warehouses and outdoors