Be prepared for storms and emergencies with built-in NOAA radio receiver. The built-in LED Flashlight and rubberized grips provide enhanced functionality to keep you on the go. VibrAlert notifies you of incoming transmissions with enhanced vibrating feedback. Waterproof spec allows you to be ready for whatever mother nature can throw at you. Voice-activated transmission frees hands for other tasks. A total of 3124 channel combinations are available when the 22 channels are combined with the 142 privacy codes (38 CTCSS/104 DCS). The radios include rechargeable NiMH batteries and a two-port charging dock. May also be used with AA alkaline batteries.