iPhone 8 Plus Battery Case, iPhone 7 Plus Battery Case, UNU DX-Free iPhone Portable Charger iPhone 8/7 Plus [MFI Apple Certified] Charging Case [Black] 4100mAh Extended Battery Pack Power Cases The powerful 4100mAh Li-polymer rechargeable battery can effectively provide 100%+ extra battery life to your iPhone 7 Plus, which is equivalent to add 14 + hours talk time or 10+ hours web browsing time. 360 comprehensive bumper design and hard-shell backplate, the UNU 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. 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 $100+ on keeping multiple apple cables. We can only use the wireless headsets while using this case, and softer side that safely holds your iPhone while providing easy access to all buttons and ports. UNU DX-7+ iPhone 7 Plus Battery Case works with iOS10 and all future updates; it comes with "ONE YEAR WARRANTY" by UNU ensure our products work the way you need them to.