Yaesu SSM-57A Earphone & PTT Microphone Replaces MH-37A4B For Select Yaesu, Standard and Vertex Radios Fits VX-3R, VX-5R, FT-60R, VX-2R, FT-1DR, FT2DR Also Fits FT-250R, VX-150, VX-110, VX-8GR, FT-1DRS Genuine Yaesu item in Original Yaesu Package. Replaces older MH-37A4B.