YHhao Battery Charger Case 4200mah Back Up Power Bank Extended Battery Charging Case for iPhone 5 5S 5C Slim Fit Slider Design + Full Body Protection + On/Off Switch LED Battery Level Indicator (Black) 4200mAh External Battery Backup Charger Case Pack Power Bank for iPhone 5 5s 5c Turn on the battery case to start charging your phone. Separately charge the battery case or use the battery charge your phone to avoid overheating issues. LED charge status indicator show the capacity of battery Charging and protecting 2 in 1, using on traveling and outdoor activities. Cable is not included, please use your original phone cable. The trademark of this product is YHhao, which had been registered in USA. This product is only sold by YHhao store and YHhao store will provide the after-sell service.