Seidio BD5-PBYIPH4-BK Innocell Plus Power Case and Holster Combo for Apple iPhone 4/4S - Retail Packaging - Black First iPhone 4/4S power case with a removable battery that is certified by Apple Case includes a 1750mAh battery and slot allows users to swap out battery with a spare Included micro-USB cable allows you to sync and charge your iPhone 4/4S without the hassle of removing your case Felt-lined holster keeps your Apple iPhone 4/4S safe while the top clip allows for easy access and the belt clip swivels in up to seven directions For use with Apple iPhone 4/4S