Controls & Connectors5UNIDEN PRO5050 AM-CB TransceiverPRO5050 Base Front View2 3 4 5 6 7 81 91 CH - Rotary CHANNEL Selector2 SQ - Rotary Squelch control3 MENU/ENTER - Menu and Select button4 DUAL/MON- Dual watch and Monitorbutton5 ANL/NB - Automatic Noise Limiter+ NoiseBlanker1112 13 146 MEM - Memory Scan Channels7 SCAN - Scan On/OffOS/GS - Open or Group Scan8 MIC - Front Microphone Jack9 VOL/PWR - Rotary Volume ControlPower On/Off Push control10 Liquid Crystal Display (LCD)Controls and ConnectorsConnectors11 Power Input Connection12 Rear MIC Jack13 External Speaker Jack14 Antenna ConnectionPRO5050 Base Rear View10