>1900mAh External Rechargeable Backup Battery Charger Case Guard For iPhone 4 4S
100% Brand New, High quality Battery.
Iphone 4/4S 4G external battery charging case
full body coverage protection for your iphone
works as both an extended iphone battery se and a protection case
Protective and powerful
Full Body Coverage for iPhone 4/4S
Lightweight, thin design .
Non slip comfort grip
Automatic tests function
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 for emergency.
1 x External Battery Case
1 x Micro USB cable