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- Compatible with: iPhone 1st Generation 2G, iPhone 3G (8GB, 16GB), iPhone 3GS (16GB, 32 GB), iPod Touch (1G, 2G, 3G), Nano, Video, Classic
- Doubles battery life of iPhone 3G 3GS - provides up to 8 additional hours of talk time and 30 additional hours of playback time
- Smart battery technology drains battery of the Power Crystal first before switching to the iPhone's battery
- Convenient rechargeable battery allowing you to always have a battery charging backup when you are away from a AC outlet
- Compact, stylish, and light-weight. Convenient to carry in your pocket or purse. Leave it plugged in to your phone and let it charge your phone on the go
