Mophie Juice Pack Air for iPhone SE/ 5/5s (1,700mah) - White (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. This phone case works as a rechargeable 1700mAh lithium ion polymer battery and protective case in one great item The Mophie Juice pack offers power of up to 6 hours of talk time on 4G and LTE. Up to an additional 8 hours on 3G. Up to 40 hours of additional audio playback. Up to an additional 10 hours of video playback. Elegant ad sleek soft touch finish - Sleek poly carbonate ABS materials in a sleek soft touch design. Quick recharging speed of 1 amp