The zPix from Carson 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 10.4.9 or later; Windows 8 or earlier Windows versions such as Windows XP SP2, Windows Vista (32 bit or 64 bit) or 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 or 3.0 is required. No batteries required. At Carson, we strive to make sure our customers are 100% satisfied with the quality of our products. We are so confident in our products that we back them with a One Year Limited Warranty! This Carson product is warranted to be free from defects in material and workmanship for a period of one year from date of purchase. Please contact Carson for additional warranty details.