... 400 mAh backup battery 4,LED light 5,Ultra thin design,portable Item #:MP-028Item Name:3 in ... 1 Ultra Thin Card Battery Features 1,Data sync with USB2 ... 400 mAh capacity,which can supplement 15% power capacity for iPhone. 3,Allows you to charge your iPod, iPhone ... used as a convenient emergency flashlight 5,Ultra thin(only 5.5MM) easy for your carry and storage. 6,Different ...