White Charging Case for iPhone 4 and iPhone 4SCharging case for iPhone® 4 and iPhone® 4S extends battery life to almost a full charge. It is precharged and ready to use. The 1700 mAh lithium polymer battery provides reusable and rechargeable power. Micro USB cable included for syncing device and recharging case. Features LED battery life and charging indicator. On/Off button allows user to control charging. Flexible case fits securely around your phone and has optimized opening for camera flash. Recharges in 2 hours at 5 watts. For Device Type: iPhone® 4; iPhone® 4S.