About this item: 
40X-2500X MAGNIFICATION: The compound binocular microscope set includes 4 wide-filed eyepieces(WF10X, WF25X) and a 2X lens with 4 metal achromatic objectives: 4X/10X/40X, 100X(oil), providing you with various magnifications from 40X to 2500X. You can freely switch to better explore the microscopic world! 
DUAL LED ILLUMINATION: The microscope for adults has a top incident and a bottom transmitted LED illuminator, while light brightness can be adjusted by the knob. Compared to other microscopes with single-bulb LED illumination, the bottom illuminator of our microscope has three built-in bulbs for greater brightness and longer life. 
IMAGE & VIDEO SHARING: With the included 1.3 MP HD eyepiece camera and phone adapter, you can capture full-color still images and record videos on your computer or phone. Parents and children can share the joy of exploring the wonderful world of life sciences in real-time during home education, and professionals in the lab can record the details of samples in experiments more clearly. 
EASY TO OPERATE: The microscope slides can be moved up and down, left and right, front and back on the stage, and the caliper allows you to move the slide precisely. The coarse/fine focus knobs on both sides are convenient for you to focus on the specimen quickly and get a clear image. 
ERGONOMIC DESIGN: 360°rotation binocular head, you can freely adjust the observation position according to your needs, and convenient to observe with others. 45°tilt eyepiece provides a clearer view and better viewing field, and also can effectively reduce your neck strain. Easy adjustments of different interpupillary distances.