This is a perfect microscope with a 2MP 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 2MP detachable digital camera. The LED illumination system uses either an outlet (adapter included) or three AA batteries. The digital camera captures still images and video, and allows you to view a live stream on your PC. The included software for Windows offers image-development and measurement tools, as well as advanced compositing features such as image-stitching and extended-depth-of-focus. Independent preview and capture resolutions allow you to view high-speed video while capturing high-definition images. On Mac computers, the camera can be used as a driverless imaging device, compatible with various applications, such as ProScope and Photo Booth.. It is an ideal microscope for home schooling or for students in elementary to high school. It is also an excellent instrument for hobbyists. It comes brand new in its factory sealed original box, with a retail value of $500.