Slip the PowerGuard Battery Case with Card Stand onto your iPhone 4 and you will have hours of extra power for web surfing, calls, apps and more. Plus your iPhone will be protected by the PowerGuard''s tough case. There''s even a handy card stand that props up your iPhone for handsfree FaceTime chats. * Extended talk time listed based on iPhone 4. As your Kensington PowerGuard is used over time, it will have a reduced ability to provide extended time and the time will decrease from that shown above.