... double USB output mobile power (material: plastic case)product descriptionbackup battery for ipad 21. double USB output interface, can charge for ... operation. Value share, no need to bring all kinds of chargers, the included adapter can help you charge most digital products ... , digital camera, ipod, iphone4/3G/3GS, Ipad. product specificationbackup battery for ipad 2110*70*16.5mm capacity :5000mAh/3.7V ...