Adventure Ready: The J-369 wind up radio is more than just a daily use FM/AM portable radio. It's a multi-function survival tool that will be your go-to for all your outdoor and emergency needs. With a built-in non-removable 3000mAh rechargeable battery, this radio offers 4 power options - including micro USB charging for everyday use and hand crank and solar panel options for emergencies. The portable radio also features a powerful flashlight and reading lamp to light your way in the darkness of the wilderness. And in the case of a power outage, the radio can even supply emergency power to your phone. With an SOS alarm function, this radio will be your reliable helper in any emergency situation. Don't leave for your next adventure without it! (Note: Can only charge internal battery, not AA batteries.)