4 years & up. This microscope has an integrated camera that displays the magnified image right on your computer screen. The impressive 35x magnification allows children to see details they never knew existed! The built-in internal illuminator ensures a clear and bright image for photo or video capture. Compatible with Microsoft Windows® 98SE, ME, 2000, XP, XP Service Pack 3 Upgrade, Vista and MAC OSX 10.4 or later. A USB 2.0 port is required.