|This uNu case is designed to double the battery life of your iPhone 4/4S while still offering a perfect hand grip and maximum protection. BONUS: Free Transparent Screen Protector, Micro Fiber Screen Cleaning Cloth, and charging cable!|
With an Apple-certified 30-Pin connector, you can easily get your phone in and start reaping the rewards of this battery pack. It fully supports charge and sync with the case on.
The accurate LED power indicator flashes when your battery runs low, and the smart switch lets you have more control over charging. The DX allows users to sync and charge with the case equipped, view current battery levels via the LED battery capacity indicator, and has an invisible charging switch that allows users to toggle the external battery case on/off depending if more power is needed. And with a battery capacity of 1700mAh, you'll get 210 hours of standby time, or 7 hours of video time.