Delivers power for hours of extra play/work time through an innovative bypass that preserves the iPhone 4 battery by powering, not charging, your iPhone 4 or iPhone 4S
eSwap™ technology lets you swap the iPhone 4 battery case module on the go to double, triple, or more, the amount of power you get with myPower for iPhone 4 or iPhone 4S. Optional ultra slim eSwap battery modules available.
Ultra slim profile gives power without unnecessary bulk
myGuard™ protector prevents potential scratches to iPhone 4 or iPhone 4S
Complete protection from everyday wear and tear
High-speed micro USB 2.0 interface lets you automatically sync your iPhone 4 or iPhone 4S
Simultaneously charges iPhone 4 or iPhone 4S and battery while connected to power source
Comfortable soft touch finish
Bright, dual-color capacity indicator shows remaining power at a glance