... power bankSpecificarion Brand NameSinobandCapacity1900mAhInputDC5.5V 500mAhShell MaterialABSDimension67*62*15 mmRunning Temperature-5°C - 40°CColorBlack ,White, Color print, Green, Blue,Pink ... -008A Internal Battery TypeLi-polymer CellsOutputDC5V 800mAhRecycling life≥500timesNet Weight48gStorage Temperature-10°C - 30°CWarrantyOne yearApplication Charging for iphone 4/iphone4s ...