【Compatibility】Compatible with Retevis RT29, RT47, RT47V, RT48, RT82, RT83, RT87, NR30 and Ailunce HD1, also fits for Motorola GP328Plus GP344, EX500, EX600, EX600XLS GL2000 GP344, GP388 GP644 GP688 PRO5150 Elite PRO7150 Elite and for hytera HYT TC-780, ect two way radio. 【IP65 Waterproof】Featured with waterproof and rainproof degree, dust intrusion can be prevented (with no hurmful sediments). The peaker mic can resist the water column of the high-pressure water spray gun for at least 3 minutes. 【3.5mm Audio Jack】Included a 3.5mm earphone jack for audio receive to make it possible to use in noisy environments. If you don't want others to hear sound, just need to attach a 1-pin 3.5mm listen only earpeice. 【360 Rotating Clip】360 °rotatable clip in the back allows you clip the mic everywhere you want, no matter clothes or backpack, easily for a shoulder mic to use. With the stretchable coil cord and rugged cable, the handheld speaker mic can be more flexible to speak and hear the high quality clear sound without lifting radio. 【Side PTT】With big PTT button by the side, the function of push-to-talk can help you open the microphone quickly. Sensitive push to talk button that are easy to handle even if you're wearing thick gloves. 【Application】Excellent for using in police, military, security, bouncer, nightclubs, bars, restaurants, hotels, warehouses, party, concert, stage, studio, etc. It is ideal choice for outdoor activities. Compatible with Retevis RT29, RT47, RT47V, RT48, RT82, RT83, RT87, NR30 and Ailunce HD1, also fits for Motorola GP328Plus GP344, EX500, EX600, EX600XLS GL2000 GP344, GP388 GP644 GP688 PRO5150 Elite PRO7150 Elite and for hytera HYT TC-780, ect two way radio.