1. USB charging and data transmission
2. Capacity: 2000mAh(Li-polymer battery cell) 3. Output: 5V/1A
4. Colors: Black & OEM
5. Material: Genuine Leather
6.Weight: 215g
7.Dimensions:131*63*21mm
1. Luxury genuine leather case for iPhone 4/4S
2. Double iPhone battery life
3. With on/off switch, LED power level indicators
4. A-grade battery cell
5. Japanese chipset, high efficiency, great reliability
6. Built in over-voltage, over-charge, short circle protection
7. High grade ABS+PC housing