Professional driver-requested improvements include a front panel microphone connector (for convenient in-dash installation), a 9-foot microphone cord (for easy reach anywhere within the cab), and tactile controls (for added convenience and safety when adjusting functions). It's the number one choice of professional drivers! SWR CALIBRATION DELTA TUNE SWITCHABLE AUTOMATIC NOISE LIMITER & NOISE BLANKER DIM/BRIGHT INSTANT CHANNEL 9 CB/PA ILLUMINATED ANALOG SIGNAL STRENGTH/POWER & SWR METER 4-PIN, SCREW-ON MICROPHONE CONNECTOR ON THE FRONT PANEL TACTILE CONTROLS RX & TX INDICATORS HEAVY-DUTY DYNAMIC MICROPHONE WITH 9-FT CORD