Microware iScan 900DPI Mini Wireless HD Portable Hand Held Scanner Support MicroSD Cards Features: High/moderate/low resolution settings. Wireless and No connection to PC needed. High storage, Light weight and easy to carry. Scan data is JPEG format or PDF format, you can choose. MicroSD cards are stored directly read scan data, card reader or connect the USB cable can be achieved, a mini but great helper for your daily need. iScan Image Sensor A4 Color Contact Image Sensor Scan Resolution 900dpi/ 600dpi / 300dpi (Press the "DPI" button to switch, very convenient :) Storage Format JPEG/PDF Scan size A4 (216mm) Scan speed Color 900DPI 12 sec / page Color 600DPI 8 seconds / page Color 300DPI 3 seconds / page Storage volume(based)