for iPhone 4 battery 1,Colorful bumpers can be changed 2,Capacity:1500mAh 3.Li-polymer battery cell 4,CE,FCC,ROHS

for iPhone 4 battery

1,Colorful bumpers for iPhone 42,Capacity:1500mAh3.rechargeable battery4,CE,FCC,ROHS

Cover Battery Case:

1. USB charging and data transmission 2. Capacity: 1500mAh(Li-polymer battery cell)

3. Output: 5V/500mA 4. Colors: black 5. Material:ABS 6. Packing: Gift Box

7,Color: multi colors are optional.

for iPhone 4 battery case (Apple MFI is optional)