iPhone 6 / 6S Battery Case, SAVFY Portable 3200mAh Polymer Battery Rose Gold Battery for iPhone 6/6S 4.7" External Battery Backup Protective Charger Case, Black COMPATIBLE WITH IPHONE 6/6S 4.7": The battery Case is for iPhone 6/6S 4.7", NOT for iPhone 6 Plus or iPhone 6S Plus. 100% full compatible support with iOS 9+ and future iOS software updates. It match the apple safety and regulatory standards INCREASE 100%+ EXTRA BATTERY LIFE: The powerful 3200mAh Li-polymer rechargeable battery can effectively provide 100%+ extra battery life to your iPhone 6/6S 4.7", which is equivalent to add 14+ hours talk time or 10+ hours 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; and a softer side that safely holds your iPhone 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: Over temperature protection, Over charge protection, Reverse-charge protection, Over voltage protection, Over discharge protection, Over current protection, Short circuit protection CHARGE & SYNC: Charge and sync your mobile phone without Removing it from the battery pack, charge your iPhone and battery case together.