Galaxy S7 Battery Case , UNU Galaxy S7 Charger For Samsung Galaxy S7 Protective 4500mAh Battery Pack Juice Power Case/Galaxy S7 Charging Case - Black/Black The powerful 4500mAh built-in battery can effectively provide more than 100% additional battery life to your Galaxy S7, which adds additional 12 hours of talk time and 15 hours of web browsing time. Featuring a MicroUSB input port and lightning output port, the case has data and power pass-through enabled. Your Galaxy S7 can be charged and synced while encased via the included MicroUSB cable. Two piece design: A fully protective hardshell case with the minimum added bulk. Enjoy the comprehensive protection while still maintain the slim form factor of your Galaxy S7. The DX-S7 Portable Charger Battery Case also has the following functions built-in: charging switch, LED battery level indicator, charge & sync through the case, headphone jack cutout. The UNU DX Series Samsung Charger is an upgraded version of original UNU battery case. It deploys original Parts and has passed various Samsung's lab tests to ensure reliability and compatibility to your phone and any future Android related update; One Year Warranty.