Uniden PRO510XL The Uniden PRO510XL is a Euro-styled 2-way CB radio. It operates on 40 FCC-approved AM frequencies. It's S/RF meter and 4 digit LED indicators help's you to monitor activity at a glance. The PRO510XL features ANL Switch and Squelch Control to produce clear, legible signal on every channel. The channel selector allows you to select the desired channel for transmission and reception. It also features front-positioned microphone with extra-long coiled cord for convenient use. PRO510XL Features 40 Channel CB Radio Mobile / Base scanner ANL Switch LED Display Electret Condensing 4 Pin Microphone S/RF Meter Channel Indicator Channel Selector Squelch Control 4 Watt Transmission Volume Control External Speaker Capability CB Radio