With a twist on its classic design,dual-layer LED lighting with adjustable brightness, enabling viewing of both translucent biological samples, and low magnification (4x and 10x objective) viewing of opaque samples.Explore the microscopic world with clarity and detail with this binocular microscope set.Biological Microscopes for Kids Students Adults gifts.Bullet Points:1.Enhanced Comfort: Wide-angle eyepiece with diopter compensation for improved observation comfort.2.Superior Optics: All-optical glass lenses coated with transparent films for clear imaging.3.Build: Metal body construction for long-lasting use and improved imaging effects.4.Wide Lens Diameter: 23mm lens diameter for a broader field of view.5.Excellent Workmanship: Precision engineering for reliable performance and quality imaging results.Specifications:Product Name: Biological MicroscopeEyepiece: 10X,50X Magnification: 15000XAuxiliary mirrors: 3X extender (2 pcs)Converter: four-hole converterStage: square moving ruler platform, 6-color filter turntableFocusing system: thick and thin coaxial focusing screwLight source: LED. Up and down electric light source, brightness adjustmentSize: 190x290x390mmPacking list:1 *binocular microscopes4 *eyepiece2 *extender8 *objective lens1 * charger1 *phone holder1 * carrying case1 * user manual