100X-2000X High Magnification: Wide field Eyepiece WF25X and 2X Barlow lens work with 3 metal achromatic objective lenses: 4X 10X 40X, providing 6 levels magnifications: 100X 250X 1000X/200X 500X 2000X | Adjustable Dual LED Illumination: Use bottom light to see translucent specimens and top light to see opaque objects; 100 V to 240 V AC power (included) or 3 AA batteries (not included). Please avoid using low battery | 5 Color Filter Disc: Works to incease contrast, black ambient light or remove IR/UV radiation | Co-axial Coarse and Fine Focus: Solid all-metal frame. Rotate coarse focus to find the image quickly and then rotate fine focus to find the image clearer precise and shaper. Usually move the stage up to focus when magnification increases | Ergonomic Design: True 360° rotatable head for children and adults observing together. 38° tilting eyepieces helps to reduce eye and neck strain. Please don't take too close to the eyepiece while watching to avoid seeing your own eyelash | Complete Kit for lab, homeschool, STEM, K-12 Edu: Designed to help kids (6+)/students/adults beginner/amateur scientist/hobbyists exploring the fantastic world of life bioscience with complete preparation kit (11 pieces included)