uNu Power DX Protective Battery Case for iPhone 4S & 4 uNu Power DX Protective Battery Case for iPhone 4S & 4

As the most stylish battery case in uNu series product, the DX case in glossy white color is designed to virtually double the usage time on your iPhone while keeping the original look of your white iPhoneFeature Highlights - Apple Certified 30-Pin Connector - Built-in Battery + Protective Case + Signal Problem Fix - Fully Support Charge and Sync with Case On - Smart Switch, Gain more control over charging to enhance Safety - Accurate LED power indicator, flashing when battery runs low - Perfectly design, offer a full protection only for iPhone 4 - Battery Capacity: 1700mAh - Standby Time: > 210 Hours - Call Time: > 5 Hours (3G) / 10 Hours (2G) - Browsing Time: > 5 Hours (3G) / 7 Hours (WiFi) - Music Time: > 28 Hours - Video Time: > 7 Hours