The zPix from Carson Optical is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 35x-165x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image to keep using the built-in 640 x 480 resolution Digital Camera. You can even capture close-focus video! The MM-640 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, Windows 98 SE, Windows 2000, Windows ME, Windows XP, Windows Vista. A USB 2.0 port is required. Compatible with Windows XP SP2 or above, Windows Vista (32 bit or 64 bit) and Windows 7 (32 bit or 64 bit). Software included is for use with Windows OS platforms. If using the device with Mac OSX 10.4.9 or later, this item can be used with applications which support the viewing of USB video devices (these applications are not included). USB 2.0 Required. No batteries required