Duracell Powermat PBRB1 Portable Battery with up Double Dattery for Android Devices and iPhone 4/4S-Black
- Double the battery life of any iPhone, iPod, and most micro-USB-enabled Android devices..
- Charge anywhere in the palm of your hand with on-the-go power..
- Can be used for: iPhone iPod Smartphone e-book Reader, bluetooth headset / headphones..
- Instant backup power for any Micro-USB enabled smartphones..