Merlin iPhone5 Case with Battery.
Portable Power Station with case for your iPhone5
Re-charge or extend your iPhone5 use time on the go
With the Merlin iPhone5 Case with Battery you can enjoy up to 21 hours of talk time on iPhone5, 30 hours of Internet use on 3G, 35 hours of Internet use on Wi-Fi, 35 hours of video playback, or 113 hours of audio playback on a full charge. In addition, your iPhone5 will now have up to 390 hours of standby time.
Super Slim Profile: Take it anywhere
Easy Charging Just plug in original phone adapter
Dual Purpose Lets you charge and talk at the same time.
Rechargeable up to 500 times.