4W of power over all 40 channels; NOAA(R) all-hazards/weather alerts; RF gain control; 5-channel memory with dual watch; High/low power settings with auto battery save; Keypad lock; Choice of channel or frequency readout; 5 user-selectable memory channels; Large, 15-function LCD readout; Includes mobile adapter to provide DC power plug & external antenna connector, rechargeable battery compartment, alkaline battery compartment, AC plug-in charger & antenna; Requires 6 AA alkaline batteries;