New Arrived! for iphone4 portable power bank: Features: MODELS5SIZE70mm*37.6mm*22mm(Deviation ±0.2mm)WEIGHT70 gCOLOURwhiteInputDC 5.0V±10%V/1000±10%mAInput PortMini USBOutputDC 5.0 V±5%V/500mAOutput PortUSBOperation Temperature-20°C-45°CCellLi-ionCell capacity2200mAhFunction