Mophie Juice Pack Air Battery Power Pack Case for Apple iPhone 6/6s Gold (Certified Refurbished) This Certified Refurbished product is tested and certified by the manufacturer or by a third-party refurbisher to look & work like new, with limited to no signs of wear. The refurbishing process includes functionality testing, inspection, reconditioning and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty & may arrive in a generic white or brown box.Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. INCREASED BATTERY LIFE -Extend your phone's battery life with this rechargeable 2,750mAh lithium-ion polymer battery in a protective cover. It adds 100% more power to your battery's life when used. Make it standby by just clicking the button at the bottom and monitor its status too, with the LED light indicator it comes with. HIGH LEVEL PROTECTION - This hard yet slim phone shell provides your phone with the utmost protection it needs even when not charging. Rubberized supports guard your phone's edges from drops and hard falls with superior shock absorption. Feel confident with a phone case that delivers excellent protection while looking great at the same time. EASY TO INSTALL - This juice pack is easy to install. Just separate its top cap and slide your iPhone all the way to the bottom section until the lightning connector is fully inserted into your phone. After that, just put the top cap back on, and your iPhone is good to go. ADDITIONAL TIME FOR FUN - As the juice pack provides you with 100% more battery power, you get to enjoy: talk time up to 28 additional hours; web browsing up to 20 additional hours; and video playback up to 22 additional hours.