SleekLighting Hand Crank USB Charger with Portable FM Radio LED Emergency Light Automatically Scans FM Stations Provides up to 10 Hours of Power on a Full Charge for Cell Phones Tablets Mobile Devices EMERGENCY power source for USB-charged mobile devices such as smart phones and tablets NEVER needs batteries. Charge with USB cable or by hand-crank. Provides up to 10 hours of power ULTRA-BRIGHT flashlight with 3 powerful LED bulbs. 1 hours of light from 10 minutes of cranking FM radio scans FM frequencies automatically. Integrated speaker provides undistorted sound LIGHTWEIGHT design makes this an ideal accessory for anywhere lacking conventional power sources