Preppi | Solar Phone Charger & Emergency RadioPreppi's new and improved Preppi Charger and Emergency Radio has USB device charging, weather band radio to receive emergency updates, LED flashlight, and even a high decibel SOS siren all in one! The upgraded 2,000 mAh battery will give your device more charge during that emergency scenario. If the battery becomes drained you can use the hand crank turbine to charge your devices or put it on a sunny ledge and let the solar panel do the work.