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 in its factory sealed original box with a retail value of $500. Features : A Great Affordable High Power Microscope for Students of Sciences 45 Degree Inclined 360 Degree Swiveling Monocular Head with Locked-in Eyepiece Built-In Contemporary LED Illumination System Using either an Outlet or Batteries Plain Stage with Clips and Stain Resistant Finish Fully Coated Optical System High Resolution Offering Sharp Images Five Levels of Magnification: 40X 100X 250X 400X and 1000X Single Lens Condenser and Six-Hole Disc Diaphragm Focusing Control Knobs on Both Sides Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Solid Metal Frame with Stain Resistant Enamel Finish Manufactured under ISO 9001 Quality Control Standard Excellent five (5) year warranty Specifications : Head: 45 degree inclined monocular Eyepieces: WF10X and WF25X Objectives: 4X 10X 40X Condenser: single lens with 6-hole disc diaphragm Stage Dimensions: 3-1/2 x 3-1/2 Illumination: LED Power Supply: 110V/60Hz (adapter included) or 3 AA batteries (not included) Camera Specifications: Sensor: Aptina Sensor Type: CMOS Sensor Size: 4.73x3.52mm px Size: 2.8 Resolution: 2.0MP Frame Rate: 5@1600x1200 7.5@1280x1024 7.5@1280x960 20@800x600 Compatibility: 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/7/8/10 Hardware Requirements: Intel Core2 2.8GHz or comparable processor 2GB RAM USB2.0 portPacking List : One Monocular Microscope Three Objectives 4X 10X and 40X One Widefield 10X Eyepiece One Widefield 25X Eyepiece One Outlet Power Adapter One Dust Cover Two Clips User s Manual for Microscope One 2MP USB2.0 Digital Camera One 6 (1.8m) USB Cable One CD with Software Driver and User s Instructions Package Dimensions: 15 x 10 x 6.5 Shipping Weight: 5 lbs