Specifically designed for emergency & disaster preparedness, the KA380 offers different methods to power itself. Those methods include computer USB, 3 AAA batteries (not included) and the built-in rechargeable which can be charged from a USB adapter, by . The solar panel not only can keep the built-in battery fully charged but also provides power for the radio even when no battery is installed. With its revolutionary design and versatile functions, it's an ideal companion for emergency preparedness purposes, outdoor activities as well as traveling. In ad