http://www.groupon.co.in/deals/shopping/Smartfish-Power-On-Powerbank/368441 Features: Color: Green Compatible with all generations of iPhone / iPod (Excluding iPhone 5 & iPod Shuffle) Built-in Electroluminescent Display (ELD) that indicates accurate battery status & glows green ascending light when charging Easily recharged via USB connection Steady high current output ensures charging efficiency & safety Integrated smart chip provides full protection against electric overload Compatibility: iPhone 3/3Gs, 4/4Gs Specifications: Li-Polymer Battery Capacity: 1200mAh Input Voltage / Current: DC 5V / 600mA Output Voltage / Current: DC 5V / 500mA Dimensions: 74×46×16mm Weight: 45g