With the Juice Pack Air attached to your iPhone, the state-of-the-art battery technology virtually doubles your power–you’ll be able to extend talk time by up to 4.5 hours (while on a 3G network) and standby time by up to 270 hours. The Juice Pack Air is the world’s thinnest rechargeable battery case for iPhone 3G and iPhone 3GS, and it’s been certified by Apple as “Works With iPhone 3G(S),” passing strict over-the-air performance tests by an Apple designated test lab.
Its ultra-thin, lightweight, low-profile design hugs the iPhone for full protection, and it has an easy-to-grip soft touch case. Use it as a case all the time or just when your iPhone needs an extra boost. This mode comes in black, and it’s also available in white and purple.