Battery1inc 15600mAh ANTPO Portable Rechargeable Power Bank with Dual USB Output for Smartphones - Retail Packaging - Black IP56 Waterproof Certificate Slim Compact, portable & stylish design; Easily fits into your bag to provide instant power; Ideal for Long Flights & Journeys without a Plug-Point, Charges Anytime Anywhere Ultra Fast charging any Smartphones (cell phones 2~3 hours full charged ),Rechargeable Over 500 Times Capacity 15600mAh Li-polymer ; 4 LED Lamps Display Active Capacity IP56 Waterproof Certificate