The VE-M4 is the ideal microscope for education and laboratories settings. Its mechanical stage facilitates sample observations and the LED lighting prevents the device from heating up. The VE-M4 includes a rear cable-winding reel for the power adapter. Recommended for educational use that does not require comprehensive observations such as viewing the basic elements of a cell, samples of plant tissues, protozoa, filamentous fungi, sperm, etc. Product Specifications: EYEPIECE WF 10X/18 mm with block screw. HEAD Monocular head, 45° inclined, 360° rotatable. NOSEPIECE Triple nosepiece with click-stops. OBJECTIVES 4X, 10X and 40X (S), achromatic optics, metallic finish, anti-slip grip and color ring for easy identification. STAND Stative, robust and reinforced with epoxy paint finish.. STAGE Two-layer stage, with X-Y coaxial movement, 5.11in x 5.11in, vernier, millimeter scale, clamp and height adjustment with stop. CONDENSER Abbe, N.A. 1.25 with height adjustment screw. DIAPHRAGM Iris type with filter holder. FOCUSING Coarse and fine anti-slip control knob with tension adjustment. ILLUMINATION LED with intensity control WEIGHT 12.32 lb / 5.58kg DIMENSIONS 10.04in x 12.99in x 12.99in / 255 x 329 x 329 mm POWER SUPPLY Three 1.2V AA rechargeable batteries (included) for 4 hours of continuous operation. 110-240V, 50/60 Hz AC adapter. Accesories included: AC/DC adapter. Dust cover. Adapter cable reel device.