... 3,400 mAh backup battery 4,LED light 5,Ultra thin design,portable Item #:MP-028Item Name:3 in ... ,high speed of data transfer 2,charging fucntion in emergency situation. 400 mAh capacity,which can supplement ... 15% power capacity for iPhone. 3,Allows you to charge your iPod, iPhone, iPad ... when connecting to your PC. 4,LED light can be used as a convenient emergency ...