Dorr 6600mAh Black Powerbank is a powerful and portable 5V USB back-up power source with a capacity of 6600mAh/5V (33Wh). It is extremely compact so you can carry in your pocket as a reserve tank for devices with a USB port such as iPhones, iPods, Smartphones, Tablets, Cameras and more! Supplied with USB/Micro USB cable and the LED display indicates capacity and charging status.