Input:5V500MA, Output:5V 500MA capacity:1000MA Used for iPhone 4/4S,iPhone3G/3GS, iPod touch, etc offer OEM

External power supply

Input:5V500MA

Output:5V 500MAcapacity:1000MA             

Used for iPhone 4/4S, iPhone3G/3GS,iPod touch,iPod classic, iPod nano

1000MA external power supply input/output 5v 500mA for iPhone 4/4S iPhone3G/3GS iPod touch iPod classic iPod nano