Optimal size Powerbank. Features: Can charge 2 devices at the same time. Capacity: 7800mAh. Approximate quantity of full charges for an average smartphone: 2-3. Output: 2x USB 5V/max 2,4A. Input: 5V/2A Micro USB. Approximate time of charging: 6 hours. LED indication of charge. Stylish design, embossed logo. Smart IC technology allowing to charge devices at optimal power rates. Dimensions: 147 x 77,5 x 26mm. Weight: 240g.