Cobra "Classic" full featured AM/FM 40 channel deluxe trucker's CB radio with dual AM/FM modes for optimal sound quality. Features RF gain, Dynamike®, SWR calibration, Bright/Dim, antenna warning LED, switchable noise blanker, automatic noise limiter, PA switch, illuminated analog signal strength and power meter, front panel 4 pin screw-on mic jack with dynamic microphone, Channel 9 switch, tactile controls, receive and transmit indicators and rear speaker jack.