The Uniden PRO501HH 40-Channel Handheld CB with Weather Alert includes the CB features you need every day. 40 CB channels let you tune into the action channels or break away to do your own thing. NOAA Weather keeps you informed when severe weather threatens. And the dual-watch feature lets you talk on 1 channel, while keeping an ear on another channel you are interested in. Use high power to punch out the strongest signal, or low power to preserve the batteries if you're not plugged into your vehicle's 12-volt accessory port.