200%+ Longer Battery Life. Faster and safer charging with our advanced technology.Built-in 5000mAh Li-polymer rechargeable battery,provide an extra 70 hours audio, 17 hours + 12 hours web browsing time effectively.Get ready for hours of non-stop fun. Whatever you love doing, do it for longer</br>Perfectly fit for your iPhone 7,iPhone 6 /6s. The external battery charging case has precise cutouts for speakers, charging ports, audio ports and buttons. You can sync your iPhone to a computer without having to take the battery case off.</br>Compact design,lightweight,super-slim gets you rid of tiredness from your hand while using. Incredibly slim 0.5 inch thickness provides comfortable grip and easy to carry.</br>Ultra-portable Design.360°comprehensive bumper design and hard-shell backplate, Smallfox 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</br>Reliable Quality,strictly tested before shipped out to make sure the your experience. Replacement or Money Back Guarantee if there are any quality issues!</br></br>Product Description</br></br><b>200% Extra Battery Life</b><br /> provide an extra 63 hours audio, 17 hours + 12 hours web browsing time effectively.Get ready for hours of non-stop fun. Whatever you love doing, do it for longer.<br /> <br /> <b>Compact Design</b><br /> Gets you rid of tiredness from your hand while using. Incredibly slim 0.5inch thickness provides comfortable grip.<br /> <br /> <b>Specifications</b><br /> Battery type: Li-polymer<br /> Capacity: 3.7V/5000mAh<br /> Input: 5V / 1A (Max)<br /> Output: 5V / 1A<br /> <br /> <b>Package includes:</b><br /> 1 x iPhone 6 6S 7 Battery Case</br><br/>http://www.amazon.com/gp/product/B01N30CC8R