Features:Cultivate children/'s interest in scientific knowledge.Fostering children/'s ability to observe and to begin the journey of exploration of the wonderful microbial.Easy to operate, fully functional, clear imaging, beautiful and practical, suitable for viewing a variety of biological specimen slides. into the eyes of the world. A key to unlock the door of wisdom.Drawtube: Monocular: Biological Microscope100% brand new and high qualityInstructions:1. Open the batteries compartment door after unscrewing the protecting screw.2. Insert two AA batteries, as directed in the compartment/'s bottom.3. Put back the protecting screw.4. Lift the objective lens on as much as possible with the coarse adjustment.5. Put a slide with the tissue or organism that you want to observe on the stage, fixed under the two stage clip.6. Turn on the LED light .7. Adjust the focus with the coarse adjustment,and adjust the eyepiece to your eyesight by turning it gently.8. Adjust the light intensity with the light control knod. Too much light can crushSpecification:Enlargement ratio: 1200XPowered by: 2 x AA batteries(not included)material: plasticDimensions: 12.5x7.5x21.5cm/4.92x2.95x8.46inchColor: BlueQuantity: 1 SetPackage Contents:1 * Microscope1 * Mobile phone holder1 * sample fiber4 * blank slide2 * collection bottle1 * sample box1 * tweezersOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.