The Mophie Juice Pack Air for iPhone 4/4s is a case and charger all in one that provides you much more battery time and excellent protection. This durable, ultra-thin case houses a rechargeable battery that virtually doubles your time to utilize your phone's features, while protecting your iPhone from every day wear and tear. With the juice pack air protecting and charging your iPhone, you can enjoy up to 36 extra hours of audio and nine extra hours of video playback, in addition to the battery life of your iPhone.
Ultra-thin, hard-shell case contains a rechargeable 1500mAh capacity battery
105% more power when you need it
6 extra hours of talk time, 5 hours of internet usage or 36 hours of audio play
Includes a USB charge and sync cord