Midland 13-898B Make Midland Model 13-898B Made in Japan Year 1975 Power Input 117VAC, 13.8VDC Midland 13-898B Midland 13-898B - rear view Midland 13-898B - label view Technical Specifications AttributeDetails ManufacturerMIDLAND Model13-898B Product CategoryTransceiver Mic Wiring Pin 1 – Mic Audio Pin 2 – Shield / Ground Pin 2 – Switch Line Pin 4 – RX