Solar energy technology, enviromental friendly and will not have to worry about your device run out of source anymore when outside. * High capacity of 10000mAh, Charges all iPhones 4 to 5 times, a Galaxy S4 2 to 3 times, or an iPad 2 times. * Build-in Lithium Polymer battery cells: anti-explosion, lightweight, portable and reliable. More than 500 charge cycles during the course of its life. * Dual-port Output: USB1: 5V/1A(for cellphones); USB2: 5V/2.1A(for teblets). Quick charging current and charging 2 devices at the same time. * Package contents: 1 x Poweradd solar external battery, 1 x Micro USB cable, 3 x connector, 1 x User manual, 1 x Carabiner.