Feature: 1. Rainproof. 2. Microphone with anti-noise design for clear communication. 3. Clip these microphones to our shoulder or front backpack straps for easy access and convenient communication. It's also easier to use these microphones when using a handheld radio in the car. Two-pin standard diameter: earplug 3.5mm stereo (thimble) Microphone 2.5mm stereo (bottom pin) Two needle spacing: 11mm Compatible models: UV-5R, UV5RA, F8, UV-82, DM-5R Plus, BF-888, BF-888s Package Included: 1 X Rainproof Speaker Microphone