Mophie juice pack air 3.5" Cover Red

Juice Pack Air for iPhone 4/4s, red Virtually double the battery life.
Take full advantage of everything your iPhone has to offer - Web browsing, downloading apps, sending emails, enjoying games and music or watching video - all without worrying about always having to recharge. Rigorously tested with Apple to receive "Works with iPhone" certification, this carefully engineered battery case gives up to an additional: 6 hours of talk time (up to 12 on 2G), 36 hours of audio or 9 hours of video playback.

Technically a battery.
Technically a case.
Show your iPhone some love. Protect and charge it with the compact mophie juice pack air. This acclaimed, durable, ultra-thin case houses a rechargeable battery that virtually doubles your time to rock, talk, surf and send. It’s strong enough to guard your iPhone from every-day wear and tear, yet sleek enough to maintain the aesthetic of the iPhone. The juice pack air is the proud winner of a CES Innovations 2011 Design and Engineering Award.

Fully functional.
Fully protected.

While the juice pack air shields the phone from bumps and scratches, you still have full, easy access to the buttons, ports and camera lens. And that full, rich speaker sound you’re used to? It’s all there - thanks to acoustic, sound-enhancing, forward-facing speaker ports.

Added features for ease of use.
Simultaneously recharge your iPhone and juice pack with the included micro-USB cable. Connect to your USB wall plug, or sync with iTunes and download photos and other files when connected to your computer.
Four LED lights on the bottom let you keep tabs on how much power is left in the juice pack air battery, and, when charging, will keep you updated on your its status.

Power with the flick of a switch.
The juice pack air minimizes “down time” on your iPhone. Never worry about your battery level as a built-in standby switch lets you choose when to activate your juice pack and maximize each battery charge.