Maxboost [Atomic Power] iPhone 7s Battery Case/iPhone 7 Battery Charger - 3200mAh Rechargeable Juice Charging Case iPhone Portable Power Extended Power Case [Apple Certified Part] - Matte Black Powerful 3200mAh Li-polymer rechargeable battery of the Atomic can effectively provide 110%+ extra battery life for your iPhone 7 & iPhone 7s, which is equivalent to an added 18 + hours talk time or 14+ hours web-browsing time. Protective two pieces design provides a comprehensive shield from scratches, bumps, drops and more, while still convenient enough to fit easily in your hand or in your pocket. (Notes: Not compatible with Apple EarPods with Lightning Connector or traditional 3.5mm headphones. ONLY compatible with Apple Airpods or any other wireless Bluetooth headphone accessories. Featuring sync-through technology, the case allows you to sync to your computer without ever having to remove the case! Additionally, simultaneously charge your iPhone and battery case together with the included micro-USB cable. The elegant, slim design of the Atomic iphone charger case provides an exceptional user experience that features: an LED battery life indicator and seamless cutouts to all ports and buttons. One Year warranty by Maxboost ensures the Atomic power case will last as long as your iPhone 7/7s.