SEASTAR Iphone6s Battery Case Iphone6 Battery Case 10000mah Portable External Battery Backup Charger Case Pack Power Bank for Iphone 6s /6 4.7 Inch (Gold) Compatible for IPhone6/IPhone6S. Enjoy the elegant and functional design of 10000 mAh Power Bank Case. Integrated circuit design, effectively avoid shorting circuit or overcharge even under extreme conditions of wrong operating. 3 in 1 multifunction: Combines with Power Bank, Case Cover, and Kickstand,4 Led indicators for power balance (0--25%--50%--75%--100%). 4 Led indicators for power balance (0--25%--50%--75%--100%). With a external USB output for charging 3 phones at the same time.