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. Peek into the eyes of the world. A key to unlock the door of wisdom. Instructions: 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 crush Specifications: Material: Plastic Item size: Approx.211*115*70mm Enlargement ratio: 100X; 400X; 1200X According to the picture buyer’s choice, some products do not have a retail box. Battery: 2x AA battery(not included) Note: Please do not use a strong power battery, or upgrade the battery, this will cause the LED light to burn down. Project selection: single microscope/microscope + specimen, shipped from Russia or shipped from China (optional) Any concerns, please contact us. Beginners need to repeat this process several times until they can see clearly. It is unlikely that it will be in the right place once. Sample types are random, please refer to the picture. Please do not open the dispute without any communication.