The original RoadKing CB with C4 perfect match crystal clear communication. The front panel has a 2.1 AMP USB Port to use and charge your portable devices and 4-pin CB microphone connector. The RK5640 features the noise-cancelling classic RK56 CB microphone with chrome grill and backlit control knobs that have two settings. The WR calibration is set to the perfect match and the RF gain reduces sensitivity to distant noise and signals that are weak. Squelch control eliminates background noise
The Original RoadKing®
C4 The Perfect Match Crystal Clear Communication
Front Panel 2.1 Amp USB Port to Use and Charge Your Portable Devices
Noise-Canceling Classic RK56 CB Microphone with Chrome Grill
Backlit Control Knobs with Two Settings
SWR Calibration is Set to the Perfect Match
RF Gain Reduce Sensitivity to Distant Noise and Signals that are too Weak
Squelch Control Eliminates Background Noise
Front Panel 4-Pin CB Microphone Connector