RoadKing RK 5640 CB Radio with 2.1A USB Charging Port And Road King microphone Blue Backlit Control Knobs with Two Settings 2.1 Amp USB Port, Use to power and charge your electronic devices Comes with the RoadKing RK-56 Noise-Canceling Microphone SWR Calibration Control, Mic and RF Gain Controls Antenna Warning Indicator Alerts of a Problem with the Antenna System