Rugged design with extended range capability of up to 25 miles. The pack also includes rechargeable NiMH batteries and a mini two-port desktop charger. Be prepared for storms and emergencies with a built-in NOAA radio receiver. Voice-activated transmission allows for hands-free functionality and other tasks. A total of 2662 channel combinations are available when the 22 channels are combined with the 142 privacy codes (38 CTCSS/104 DCS). You can save as many as 10 channels in the memory and then scan as many as you would like!