4500mAh Battery Charging Power Bank Charger Case Cover for iPhone 7/8 (Black) ffer an ergonomic, rugged, fully protective case + external battery for your Apple iPhone 7/8. Ultra-thin, light-weight and low profile design Convenient and easy to use, power to charge anywhere. 4 led indicators display the battery status, know before you go. Charging and sync at the same time. Built-in short circuit, over-charge and temperature protection