KENMAX 2 Pin PTT MIC Earpiece for Walkie Talkie Two Way CB Ham Radio Kenwood UV-N98 TK3230K TK-2400V16P NX-220 Baofeng UV-5RI6+ GT-5 UV-5RTP UV-82X The hidden microphone is located in the bottom of PTT switch. A remote microphone with push to talk button you can clip anywhere. Applications: l Relevant personnel: police, military, bouncer, and businessman. l Related sites: nightclubs, bars, paintball, security, restaurants, hotels, warehouses, and noisy environments. Two-pin standard diameter: Ear 3.5mm stereo (top pin). Mic 2.5mm stereo (bottom pin). Earbud fits snugly in your ear, which keeps your conversations private.