With twice the power for your Apple iPhone 4 (AT&T & Verizon), your life charges on. You can keep working. Keep playing. Keep moving. PowerSkin? is your go-to, go-anywhere, go on-and-on power source. Because battery life is life. And when (not if) you drop your Apple iPhone 4 (AT&T & Verizon) along the way, life charges on. With a sleek, protective design that fits your phone and your style like a second skin, PowerSkin? is there where the silicone rubber hits the road of your life. More, PowerSkin? is XPAL Powered, meaning it's charged by patented battery technology that reflects the highest standards of safety, quality, and performance. We've got you ¡ª and your Apple iPhone 4 (AT&T & Verizon) ¡ª covered.

The PowerSkin? has a built-in 2000mAh capacity battery that provides Xtra power to your Apple iPhone 4 (AT&T & Verizon). Doubling the power for your smartphone.

Control how you use your extra power. Just hold the battery check button located on the back for 6 seconds to turn off the PowerSkin? from providing power to your smartphone and vice versa to turn it back on.

Smart LEDs on the back, monitors the power status and lets you know when it's time to recharge.

Plug your iPhone 4 PowerSkin? case into your computer (with the phone still in) and sync to your iTunes while charging the case. No hassles!

When recharging your PowerSkin? and Smartphone. Built -in smart technology knows to charge your phone first and the PowerSkin? second - in case you don't have the time to charge both, your phone comes first.

All Product integrate a minimum of 12 safety logices into every cell for maximum protection of the battery, the device, and the user. In addition, each product uses a mathematical circuit control unit with built-in proprietary software to control and reulate temperature, voltage and current.

PowerSkin? is made of a felxible, soft, finger print resistant, recycled silicone rubber. The plastic we use to protect the power source is recycled as well.