Neat and Stylish, the NGS PowerPump 4400 Duo is a 4400mAh power bank that features double output capabilities enabling you to charge two devices at the same time. With 1 x 5v / 1.0A and 1 x 5v /2.0A output ports , the Powerpump 4400 Duo is ideal for Smartphones, Tablets, MP3 players, digital cameras and many other devices, so you will never get caught without power again!