"This Cobra Classic 40-channel citizen's band radio features SWR calibration, providing maximum antenna performance and a warning indicator when antenna needs checking. Supplies 4 Watts of power output, the maximum allowed by law, for extended range of communication. Includes Instant channel 9, delta tune, RF gain, along w/switchable NB/ANL, Make Cobra, Microphone Included Yes, Channels qty. 40, Dimensions L x W x H in. 1 1/4 x 7 1/4 x 9 1/4, Mounting Hardware Included No, Watts 4W of power output, Cord Length ft. 9. 4-pin front microphone connector Adjustable Dynamike boost Also can serve as a public address device For best results, radio should be hardwired to to 12V power supply"
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