This is a perfect microscope with a USB digital imager or camera for students to learn science. There are three magnification settings 40X 100X and 400X. It comes with full optical glass elements metal framework 360° rotatable monocular head the LED illumination system and a 640x480 px detachable digital imager. The LED illumination system uses either an outlet (adapter included) or three AA batteries (or re-chargeable 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 school or for students in elementary to high school. It is also an excellent instrument for hobbyists. It comes in its factory sealed original box brand new with a retail value of $500. Features : A Great Affordable High Power Microscope for Students of Sciences 45° Inclined 360° 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 Three Levels of Magnification: 40X 100X and 400X 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 640x480 px High Quality Color Digital Camera with USB2.0 Excellent Five (5) Year Factory Warranty Unbeatable low price Guaranteed or the Difference Back! Satisfaction Guaranteed or Your Money Back! Specifications : Head: 45 degree inclined monocular Eyepiece: WF10X 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: 3.58x2.69mm px Size: 5.6 Resolution: .35MP (640x480) Frame Rate: 30@640x480 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 port Packing List : One Monocular Microscope Three Objectives 4X 10X and 40X One Widefield 10X Eyepiece One Outlet Power Adapter One Dust Cover Two Clips User s Manual for Microscope One 640x480 px USB2.0 Digital Imager 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