MFI Apple Certified iFans Portable 2400mAh External Power Pack Back Up Battery Charger Case for iPhone 5/5S - Grey The Powerful 2400mAh Built-in Battery Can Effectively Provide 130% Additional Battery Life to Your iPhone 5/5S,Which adds Additional 11 Hours of Talk Time and 15 Hours of Web Browsing Time. Featuring a Fully Protective Hardshell Case with the Minimum Added Bulk.Enjoy the Comprehensive Protection While Still Maintain the Slim Form Factor of Your iPhone 5 / 5S. With the Folding Kickstand,Frees Your Hands When Enjoying Movies,Games and Also Facetime with Your Friends. Perfect Cutouts Allow Access to All Cameras,Microphones,Sensors,Controls and Most Importantly Headphone Jack. It has Passed Apple MFI Certified to Ensure Reliability and Compatibility to iPhone 5/5S and Any Future IOS Related Update.