... 0 interface 2,charging fucntion 3,400 mAh backup battery 4,LED light 5,Ultra thin design,portable Item ... -028Item Name:3 in 1 Ultra Thin Card Battery Features 1,Data sync with USB2.0 interface,high ... 400 mAh capacity,which can supplement 15% power capacity for iPhone. 3,Allows you to charge your iPod, iPhone ... flashlight 5,Ultra thin(only 5.5MM) easy for your carry and storage. 6,Different Colors are ...