General Specs?BrandOLVColorblackInput Voltage5.0VOutput5.0VBattery Capacity1680mAhCompatibilityiPhone 4Dimension126.5*62.5*18.5mmWeight88gFeaturesDesigned to fit the contour of iPhone 4G precisely.LED light indicator will be changed to red color when charging for your iPhone 4.Easy to install and convenient to remove. Rechargable for over 500 cycles.With a standard Micro-USB port for charging,easy to recharge for your phone anywhere and any time. Package Details Weight: 190.46 g Size: 17.5*10.6*3.2 cm Package Includes 1 ? Charger Case1 ? Micro-USB Cable1 ? User Manual