Product Name: Cheese
Work with: Apple iPhone 4
Built-in Battery Type: Lithium ion
Capacities: 1800mAh
Input : 5.0±0.5V/1.0A(Max)
Output : 5.0±0.25V/1.0A
Standby Time: Up to 300hrs
Talk Time: Up to 10hrs
Internet Use: Up to 10hrs
Audio Playback: Up to 40hrs
Video Playback: Up to 11hrs
Size: 125.4 * 62 * 16.8mm
Color: Silver&Black

1, Keep in line with iPhone 4 design.
2, High capacity, sufficient back up power source.
3, Thin, cool outline.
4, Offers iPhone 4 the full protection of a hard-shell case.
5, Charge and sync your iPhone to iTunes without removing it from the battery case. 
6, One button for capacity remain indication and switch on/off.
7, Low self-consumption, less than 50uA.