Features:

100% Brand New, High quality batterie.
Iphone 4/4S 4G external batterie charging case
full body coverage protection pour your iphone
works as both an extended iphone batterie se and a protection case
Protective and powerful
Full Body Coverage pour iPhone 4/4S
Lightweight, thin design .
Non slip compourt grip
Automatic tests function
capacity:1900 mAh
Output voltage: DC 5V
Output current:500mA max
Four LED lights indicates the power level remaining the case (Each light represents 25% of remaining power)
Sleek, Low-Profile design ;

Notice:After full chargering,it will increase your iphone about 50% energy pour emergency.

Package include:
1 x External batterie Case
1 x Micro USB cable