4 COBRA CXT240 MicroTalk 20 Mile FRS/GMRS 22 Ch Walkie Talkie 2-Way Radios |Blue Up to a 20 mile range (depends on terrain &amp; conditions) 2662 Channel Combinations: Available when the 22 channels are combined with the 142 privacy codes (38 CTCSS/104 DCS), these combinations prevent interference from other radios. NOAA Weather and Emergency Radio: Be prepared for storms and emergencies with the built-in NOAA radio receiver providing coverage of all government operated weather channels. NOAA Alert: Alerts with an audible tone and visual alarm if threatening weather is nearby Battery Saver Circuitry: A unique circuit extends the life of the batteries. If there are no transmissions within 10 seconds, the unit will automatically switch to battery saver mode.