ShineFuture Colorful Rechargeable 3200mah External Backup Battery Power Bank Charger Case with Wake up Function Cover for Samsung Galaxy S4 (Blue) ShineFuture Colorful Rechargeable 3200mah External Backup Battery Power Bank Charger Case with Wake up Function Cover for Samsung Galaxy S4 Works both as an external emergency battery and a protective cover Foldable stand for propping up your beloved phone easily Back case design for easy installation and removal Ultrathin design and perfect dimensions. Super lightweight and convenient to carry