Kensington K39575US PowerGuard with BungeeAir Battery Case with Find-My-Phone FOB for iPhone 4/4S -Retail Packaging-Black Portable PowerGuard fob attaches to your keys or handbag Free BungeeAir App with simplified alarm settings puts you in control of Wireless Security Tether functionality Integrated battery case adds 4 hours of talk time to your iPhone 4/4S Case has a built-in card slot to hold your iPhone in landscape or portrait mode (card not included) Ruggedized case resists scratching and protects your iPhone