MiLi Power Crystal HB-A10 External Battery Power Bank for iPhone 4 / 4S, iPod, Blackberry phones, HTC phones, Motorola Droid series, Xperia and Other Mobile Devices -Black External battery for iPhone 2G, 3G, 3GS, 4, Verizon iPhone, iPod (all versions), Comes with 6 different charging adapters: LG tip, Samsung G Series tip, Micro USB tip, Nokia 2.5mm tip, Mini USB tip, iPhone / iPod tip Use USB cable to charge Power Crystal. 4 LED Power Indicators. Blackberry, Motorola, HTC, LG, Samsung and other mobile phones and digital devices Technical Specs - Capacity 2000 mAh, Input: DC5V/500mA, Output: DC5V/500mA, Dimensions: 346-inch x 213-inch x 063-inch