abcGoodefg&reg; MH-42B6J 6 Pin DTMF Handheld PTT Speaker Microphone Mic for Yaesu Mobile Radio FT-7800 FT1802 FT8800 FT8900 FT2800 FT-7800R/E 100% Brand New and High Quality With a 6 pin RJ connector. Built-in PTT and microphone is very handy. Compatible with most of the Yaesu / Vertex Standard mobile station radios: FT-7800 FT1802 FT8800 FT8900 FT2800 It enables you to talk and listen without having to move the radio. Just clip the mic where convenient and use it to listen and transmit.