This is a truly portable handheld scanner, ideal for use when visiting clients, customers etc when a power supply is unavailable or inconvenient. You can download your images to your computer using the included USB cable.It's built-in display shows the selected resolution, remaining battery life, and memory status.The portable handheld scanner can support microSD cards as large as 32GB.Rather than sheet feeding pages, which is fine for unattached sheets, the portable USB scanner is moved over the area and its sensitive colour image sensor scans at high (900dpi) or standard (300dpi) resolution, and then saves the captured images as JPEG files on the microSD card.