NewNow Portable 20000mAh Power Bank USB External Battery Pack Backup Battery Power Charger with 3 Port USB Output for SmartPhones and Tablets Triple USB Ports Power Bank, 20000mAh Capacity and Compact Size LED Flash Light is convenient to use in darkness Smart Digital Display Screen: shows remaining power in digital format LED indicators show you the energy state of external battery Easily fit into your carry bag and charge your mobile device anytime and anywhere, 12-month warrant