Our Solar Hand Crank Powered Radio never needs a battery. Charges by a built-in solar panel or the hand-crank generator. The AM FM radio comes with a super bright LED flashlight, a universal mobil phone adapter to connect to your cell phone car charger and a LED red light siren to attract attention in case of an emergency. Detailed Description Super Bright LED Flashlight - LED bulb provides over 100,000 hours of emergency light. AM/FM Radio - Receives excellent reception for tuning into emergency broadcasts. Solar Power - Most flashlight & radios use batteries which have a limited storage & usage time. Solar panel allows you to charge the internal battery by placing in direct light for unlimited usage. Hand Crank Power - Built in generator allows you to charge the internal battery by cranking with your hand so that you never run out of battery power. Mobile Phone Charger - Can help save lives, by providing enough power for a short voice or text conversation. Comes with universal adapter that connects to your phone's car charger. Flashing LED Siren - Attract rescue attention with a bright red flashing LED siren.