Poweradd&trade; 3200mAh Backup Rechargeable External Battery Cover Kickstand Case for Samsung Galaxy S IV S4 i9500 (Black) 100% Brand New 3200mAh External Backup Battery Charger Case for Samsung Galaxy S4.Unique, fashionable and high-class sliding design A perfect emergency backup when the internal battery of your device is drained on the go Also can be used as a good case to protect your phone from scratches and other minor damages The case also has the following functions built-in: charging switch, LED battery level indicator, charge & sync through the case, headphone jack cutout, function button cutouts Built in kickstand allows for hands-free viewing when watching movies and other media