SVP 2-in-1 Combo Auto-Feeding Handheld Scanner PS4500 (with Micro8GB) 1200DPI Color & Mono with Docking Scanning Resolution up to 1200DPI with docking, 900DPI without docking High speed contact image sensor ; color/monochrome scan selection Saves JPEG or PDF file directly to MicroSD card or via USB port System Requirement: Windows 7 / Vista / XP SP3 and Mac OS 10.4 or above Built-in 700mAh rechargeable Lithium Polymer battery ; rechargeable by USB cable or AC/DC adapter