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Feature

Compatibility with both the Verizon and AT&T iPhone 4
Rechargeable smart battery concealed inside of a low-profile, light-weight, soft-touch, 2-tone matellic case; made for iPhone 4
Protective form-fitting case with an ultra-thin, light-weight, low-profile design
Integrated LED status indicator on the bottom tells you exactly how much juice is left at the push of a button
Charge and sync your iPhone to iTunes without removing it from the juice pack air by using the included USB cable
Adds up to 6 hours of talk time (up to 12 on 2G) and 5 hours of Web browsing on 3G (up to 9 on Wi-Fi) to your iPhone

Description

The juice pack air is a rechargeable external battery concealed inside of a protective form-fitting case for the iPhone 4. It offers you the full protection of a hard-shell case while providing virtually twice the battery life of the iPhone alone; all in an ultra-thin, light-weight, low-profile design.