... portablet power bank 4400mAh, use for mobile phone,tablet pc,with different color,useful.beautiful,Mini.fashionable. Specification: Battery:18650 battery ... 76*58*21mm Housing material:Zinc alloy material,oxidation treatment Color: Red,Silver,Gold,Black,Blue etc. Applicability: PhoneIpadMP3/ ... power bank 4400mAh, use for mobile phone,tablet pc,with different color,useful.beautiful,Mini.fashionable.