Product picture - Otto Engineering 1-Wire Monitoring Kit with In-Line PTT, Microphone & Quick Disconnect Tube for Kenwood TK250 Series 2-Way Radios Otto, Engineering, 1-Wire, Monitoring, Kit, with, In-Line, PTT, Microphone, &, Quick, Disconnect, Tube, Kenwood, TK250, Series, 2-Way, Radios Click the image to close this page