... safty 2,Convenient&light weight 3,UV unti-scrach surface, Low-Profile design power packDescription:t is a rechargeable backup battery build ... the iPhone alone; all in an ultra-thin, light-weight, low-profile design.Specification:1) Battery capacity: 3000mA/3.7V (Polyma ... Output: 5V/1000mA4) Input: 5V/1000mA5) UV unti-scrach surface, Low-Profile design6) Four Led light indication, Press on the button to ...