BAIDATONG 052 External Battery Backup Charger Case Pack Power Bank for iPhone Plus 5.5 inch (black) 4200mAh Ergonomic, form fitting, fully protective ultra-resistant case and battery 360 comprehensive bumper design and hard-shell backplate, the BAIDATONG Atomic S protects your iPhone from scratches and other daily tear and wear, yet small and convenient enough to fit easily in your hand or in your pocket. Featuring sync-through technology that you can sync your iPhone to a computer without having to take the battery case off. Simultaneously charge your iPhone and battery case together with the included microUSB cable. The case deploys microUSB input to lightning 8pin output to save you $180+ on keeping multiple apple cables. The resilient design of the BAIDATONG Atomic S features LED battery level indicator that lets you know exactly how much power you have; and a softer side that safely holds your iPhone while providing easy access to all buttons and ports. Works with iOS8 and all future updates; One year limited warranty by BAIDATONG to ensure our products work the way you need them to.