This is a perfect microscope with a 640x480 pixel 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 inclined 360 rotating monocular head, LED illumination system and a 640x480 pixel 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, for students in elementary to high school, and for hobbyists. It comes brand new in its factory sealed original box. Features: A Great Affordable High Power Microscope for Students of Sciences45 inclined 360 Swiveling Monocular Head with Locked-in EyepieceBuilt-In Contemporary LED Illumination System Using either an Outlet or BatteriesPlain Stage with Clips and Stain Resistant FinishFully Coated Optical SystemHigh Resolution Offering Sharp ImagesFive Levels of Magnification: 40X, 100X, 250X, 400X and 1000XSingle Lens Condenser and Six-Hole Disc DiaphragmFocusing Control Knobs on Both SidesFull Optical Glass ElementsPrecise Ground Glass LensAll Metal Mechanical ComponentsSolid Metal Frame with Stain Resistant Enamel FinishManufactured under ISO 9001 Quality Control StandardExcellent five (5) year warrantySpecifications: Head: 45 inclined monocularEyepieces: WF10X and WF25XObjectives: 4X, 10X, 40XCondenser: single lens with 6-hole disc diaphragmStage Dimensions: 3-1/2" x 3-1/2"Illumination: LEDPower Supply: 110V/60Hz (adapter included) or 3 AA batteries (not included)Camera Specifications: Sensor: AptinaSensor Type: CMOSSensor Size: 3.58x2.69mmPixel Size: 5.6Resolution: .35MP (640x480)Frame Rate: 30@640x480Compatibility: Windows (32/64 bit) XP/Vista/7/8/10, Mac OSX (Mac software not provided)Software Specifications: OS Requirements: Windows (32/64 bit) XP/Vista/7/8/10Hardware Requirements: Intel Core2 2.8GHz or comparable processor, 2GB RAM, USB2.0 portPacking List: One Monocular MicroscopeThree Objectives, 4X, 10X and 40XOne Widefield 10X EyepieceOne Widefield 25X EyepieceOne Outlet Power AdapterOne Dust CoverTwo ClipsUser's Manual for MicroscopeOne 640x480 Pixel USB2.0 Digital CameraOne 6' (1.8m) USB CableOne CD with Software, Driver and User's Instructions.