Need a lot of extra power? This thin power bank fits great into laptop bags and packs a powerful 11000 mAh capacity for charging smart phones, cameras, digital music players, tablets, e-readers … etc. 1 Amp and 2.1 Amp USB ports for charging multiple devices. Input: 5 V. Output: 11,000 mAh. Battery: Polymer Lithium. Capacity: 11,000 mAh. Plug: 2 USB (1 Amp, 2.1 Amp) Packaging: individual white box.