This is a perfect microscope with a 3MP USB digital camera for students to learn science. There are five magnification settings, 40X, 100X, 250X, 400X and 1000X. It comes with full glass optical elements, metal framework, 45 degree inclined 360 degree rotating monocular head, LED illumination system and a 3MP detachable digital camera. The LED illumination system uses either an outlet (adapter included) or three AA batteries. The digital camera captures still images, streams live videos on your computer screen and is compatible with Windows XP/Vista/7/8, Mac OS X, and Linux. The user-friendly editing and processing software for Windows offers advanced features including video recording, stitching, EDF (Extended Depth of Focus) and measurement functions. Live video and image capture can be set in different resolutions simultaneously. You can edit and process images in a manner similar to PhotoShop. It is an ideal microscope for home schooling, for students in elementary to high school, and for hobbyists. It comes brand new in its factory sealed original box, with a retail value of $500.