features:Designed to provide power for your iphone, ipad, ipod and mobile phones with mini usb and micro usb port, most nokia, samsung mobile phones.Built-in 20000mAh high capacity rechargeable li-ion battery.20000mAh capability, powerful with long operation time.Double USB output, more convenient.

features:Designed to provide power for your iphone, ipad, ipod and mobile phones with mini usb and micro usb port, most nokia, samsung mobile phones.Built-in 20000mAh high capacity rechargeable li-ion battery.20000mAh capability, powerful with long operation time.Double USB output, more convenient.High efficiency of power conversion.Electricity-saving function.With LED power indicator.Portable, practical and long cycle life.Safe and reliable, perfect for using on travelling and outdoor activities.Capacity: 20000mAh.Output1: 5V 1A.Output2: 5V 2.1A.