Cobra 18WXSTII CB Radio - 40 Channel, Sound Tracker, NOAA Weather Channels, Dual Watch, Instant 9 SOUND TRACKER SYSTEM - Dont miss any important information due to interference or static, with the soundtracker system cutting 90% of the noise, you'll hear clearer communication NOAA WEATHER CHANNELS - Be the first to know of incoming hazards or changing weather with instant access to NOAA weather channels 24 hours a day. DUAL WATCH - select two channels to constantly monitor simultaneously. Keep an ear open for incoming transmissions on multiple channels so you will hear alerts around you. INSTANT CHANNEL 9 - Immediate access to Emergency channel 9 to unsure you're driving safely from the very beginning WEATHER AND ALERT SCAN - Automatically tune into the strongest channel to hear all weather alerts, so you wont miss important information while scanning through the channels.