FOSTO Galaxy S7 Battery Case, Ultra Slim Portable Charger Galaxy S7 Charging Case,(Not fit Galaxy S7 Edge) 4500mAh External Rechargeable Protective Power Pack Juice Bank for Samsung Galaxy S7 Battery Case for your Samsung Galaxy S7(Not fit Samsung Galaxy S7 Edge) . Dual functional case recharges and protects your phone at the same time! Ultra Slim thin smooth finish designed rechargeable 4500mAh battery extender case with Four LED light power indicators for controlled charging and protection experience giving you more Stamina to enjoy an additional 130% battery life. One touch power button on the back of the case to activate your battery case with built in Smart sensor to prevent overcharging and overheating. Doubles your Samsung battery power to keep you going throughout the day, essential for traveling, camping, road trips, hiking, business trips and other occasions. Sync and charge your case at the same time! No need to remove your case! On board sound chamber for speaker and microphone function.