1. External battery case charger for iphone 4 2. Slimest, lightet and beautiful

Details: 

Capacity:  1900 mAhOutput Voltage: DC 5.0 VOutput Current: 700 mA Max.Led Light Indicator Li-Polymer Battery Input: DC 5v 500mAhOutput:DC 5v 500 mAhTalk time: Up to 6.5 hours on 3G network/Up to 10 hours on 2G network.Internet use: Up to 5.5 hours; Up to 8 hours on Wi-Fi.Audio play: Up to 30 hours.Video play: Up to 8 hours.Dimensions: 126x63x16mmWeight: 66.5g6 colors: Black,White,Red,Purple,Green & Black,Blue & Black

Pictures:

 

Assembly

Features:

Our Cases is one of the Slimest, and lightet external battery cases out there! It even have a built in Kick Stand! Now you can sit back and watch your movies at ease!

This gives an extended battery life for your phone of 100%

Sound EnhancementThis case is designed to act as a virtual speaker box, redirecting sound from the bottom of the iPhone 4/4S to the front, resulting in a richer, fuller sound quality.Charging and SyncingCharge and sync your iPhone to iTunes without removing it from the Power Case.Status IndicatorThe integrated LED status indicator on the bottom tells you exactly how much juice is left at the push of a button. It also indicates the charging status while you are charging the Power Case. 

1900mah external battery charger case for iphone 4