1. It allows you to talk and listen without moving the radio. Just clip the microphone in a convenient place, then use it to listen and transmit. 2. The 2.360 degree rotating lapel clip on the back of the microphone. 3. The shell is made of high-impact plastic, and the waterproof design is sturdy and durable. 4. A standard 3.5mm mono headphone jack is included at the bottom of the microphone, and the jack is covered with a waterproof flip cover. 5. Two-pin standard diameter: ear 3.5mm stereo (thimble), microphone 2.5mm stereo (bottom pin). 6. The distance between two needles: 11mm 7. Suitable for RETEVIS H-777, R888s Plus, RT-5R, RT-B6, RT-5RV, RT1, RT2, RT5; suitable for BAOFENG UV8, UV8D, UVB5, UVB6, A52, UV5RA, UV5RC; suitable for POFUNG UV-A52, UV-82, UV-8, UV-6, UV-5R, 888s, 5RA; suitable for Kenwood KPG KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, etc.