SAVFY Galaxy S7 Charger Case, 4200 mAh Portable External Backup Battery Charger Cover Case Pack for Samsung Galaxy S7 Rechargeable Power Bank Case (Gold) ONLY COMPATIBLE WITH Samsung galaxy S7 5.1": NOT for Samsung Galaxy S7 Edge or S6 or S6 Edge. It match the S7 safety and regulatory standards. INCREASE YOUR PHONE'S BATTERY LIFE: The powerful 4200mAh Li-polymer rechargeable battery can effectively provide 100%+ extra battery life to your Galaxy S7, which is equivalent to add the talk time or web browsing time. 4 LED BATTERY LEVEL: The resilient design of the SAVFY features LED battery level indicator that lets you know exactly how much power you have. PROTECT CASE DESIGN: A softer side that safely holds your Phone while providing easy access to all buttons and ports. Comprehensive bumper design and hard-shell backplate, Portable Charger protects your iPhone from scratches and other daily wear and tear, yet small and convenient enough to fit easily in your hand or in your pocket BATTERY SAFETY PROTECTION: 1) Over temperature protection. 2) Over charge protection. 3) Reverse-charge protection. 4) Over voltage protection. 5) Over discharge protection. 6) Over current protection. 7) Short circuit protection