Feature Benefit Selectable 4-Color LCD Display Choose from four easy-to-read display colors: red, blue, green and amber. Radio Check Diagnostic Allows testing of important radio functions such as RF power, antenna condition and battery voltage. Memory Channel Scan Allows scanning of up to 10 channels stored in memory. Key Tones Programmable audible tones when controls are in operation. Day / Night Dimmer Control Adjusts brightness of the front panel for day and night driving. 40 Channel Scan Allows scanning of all 40 channels. Clock / Timer / Alarm Provides a clock/alarm and on-duty timer for professional drivers. Frequency Display Displays operating channel frequency of CB and weather band. 9 Foot Microphone Cord For easy reach within any area of the vehicle. 4-Pin Front Microphone Connector Allows convenient installation to be in dash or under dash. Adjustable Dynamike Boost Dynamically boosts microphone for increased voice clarity. Tactile Controls Allows you to actually feel where the dial is in it's rotation without taking your eyes off the road. RF Gain Adjusts receive gain in weak and strong signal areas. Switchable Noise Blanker For increased noise reduction. Dimmer Control Adjusts brightness of the front panel, channel display and signal strength meter. 4 Watts RF Power Output The maximum allowed by law. Antenna Warning Indicator Illuminates when antenna needs checking. Instant Channel 9 and 19 Instant access to emergency channel 9 and information channel 19.