Vertex MH-37A4B RX/TX Light Duty Ear Piece for Yaesu
The MH-37A4B with a 3.55mm plug, combines a miniature earpiece and in-line PTT/microphone for discreet and comfortable control of transceivers. The MH-37A4B allows convenient operation while the transceiver is worn on the belt, or held high in the air for improved coverage.