Cobra HH 38 WX ST 4-Watt 40-Channel CB Radio SoundTracker System - Cuts noise up to 90% for clearer communications NOAA Weather and Emergency Radio - Be prepared for storms and emergencies with built-in NOAA radio receiver Channel Scan - Scan all 40 CB channels Dual Watch - Monitors two pre-selected channels simultaneously 4 Watts Power Output - Maximum power allowed for extended range of communications 40 CB channels 10 weather channels Sound tracker system cuts noise up to 90 percent Range of up to 4 miles High/low power switch reduces power consumption