For iphone 4g power case:
1: Include 2400 mA battery
2:ROHS,MSDS
3:Different color available
4:Easy to take

Specification for iphone 4g power case:                 

1:output:5V 1A

2:It include a 2400mA battery inside;

3.small size and elegant surface;

4.LED indicate: when you are charging the inside battery, the LED 

  indicate will be red, when the battery full, it will be green;

5.charge way: Use the iphone USB cable;

            Use the iphone home charge or car charger;

6.charge time: Charge for battery about 4 hours;

             Charge for device about 2 hours;

             The battery charge for device about 1.5 hours

7.color: different colors available