Vision Scientific LED Cordless Microscope,40x-2500x Magnification, LED Illumination with Intensity Control, 0.65 N.A Condenser, Mechanical Stage, Coarse & Fine Focus,110V or Rechargeable Battery

45° inclined Monocular head rotates 360° allowing for reverse position viewing and trouble -free observation for two people LED illumination guarantees a clear and crisp, cool-to-touch white light that lasts up to 60x longer than traditional tungsten bulbs Eyepiece with built-in pointer ensures that definite points on the slide can be easily designated and quickly identified Equipped with tension adjustment to eliminate stage drift. For added safety the rack-stop prevents damage to slides and objective lenses while the slip-clutch focusing system protects gears from damage Perfect for any educational application or classroom, elementary to high school, or for basic biological/laboratory use