http://www.shopclues.com/technotree-hame-power-bank-6600mah-me13.html Fetures Suitable for all Mobile Phones, iPad, other Tablets, Digital Camera, PSP, GPS, MP3 and other 5V input digital devices. 2.Two Output port for charging 2 digital devices at the simultaneously. USB 1: 5V / 1A (Max); USB2: 5V / 2.1A (Max) 3.Four LED indicators to know the battery status of power bank. 4.Connectors included in the Box. 5.High grade plastic shell, polish craft, compact size, fashionable design and a good travel partner. 6.Designed with international standard USB 5V, compatible for all USB charging digital devices. 7.High-precision control circuit (protection of charging, discharging, over-charging and short circuit). 8.Advanced power management IC to control and regulate temperature, voltage and current. 9.Lifetime cycle more than 500 times.