This is a perfect microscope for students to learn science. There are five magnification settings, 40X, 100X, 250X, 400X and 1000X. It comes with full optical glass elements, metal framework, 360° rotatable monocular head and the LED illumination system. The LED illumination system uses either an outlet (adapter included) or three AA batteries (or re-chargeable batteries). It is an ideal microscope for home school or for students in elementary to high school. It is also an excellent instrument for hobbyists. Bundle also includes a 25-piece prepared slide set, 5 pairs plastic tweezers, a 50-piece blank slide set with 100 glass cover slips and a BONUS – a handheld multi-USB digital microscope for PC and Android! 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-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 Factory Warranty Specifications :Head: 45 degree 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) Packing List :One Monocular MicroscopeThree Objectives, 4X, 10X and 40XOne Widefield 10X EyepieceOne Widefield 25X EyepieceOne Power AdapterOne Dust CoverTwo ClipsUser’s Manual Download50 Pre-Cleaned Blank Microscope Slides and100 22x22mm Square Cover Glass5 Pack Plastic Disposable TweezersAmScope PS25W 25 Glass Prepared Microscope Slides with Wooden Box50X-500X 0.3MP Handheld Multi-USB Digital Microscope with LED Illumination for PC and Android