Eton BoostTurbine 2000mAh Portable Backup Battery Pack with Hand Crank Back-Up Power (NBOTU2000R) Backup battery pack with hand crank back-up power Great to take with you when you might not have access to power for recharging your devices 2000mAh lithium ion battery provides a full charge to most smart phones Hand turbine power generator to get power where there is none (maybe on a plane or camping) Lightweight and durable aluminum body 5V 1A USB output charges smartphones and other USB devices Press the button to illuminate LED battery charge indicator Micro-USB DC input for use with smart phone chargers (iPhone block, etc.), USB cable included