Mophie Brings new Juice Pack Pro 2500 mAh rechargeable external battery case for iPhone 4/4S. This Juice Pack Pro is very much procreative as there is a high-impact polycarbonate inner shell, a silicone protective wrap, a waterproof speaker cover. There is a standby switch for juice pack to charge and four LEDs on the bottom that shows how much power is left. The Juice Pack Pro included micro USB cable for charging and sync to itunes. Mophie New Juice Pack Pro is available in Amazon’s store for Pre-order now.