Product name: Binoculars : 10-180x100 ur: Objective lens diameter: 50mm Eyepiece diameter: 22mm Outlet diameter: 5.8 mm Objective lens coating: FMC broadband multilayer green film Eyepiece coating: FMC broadband multilayer film Prism material: BAK4 proof rating: IP5 Shooting distance: 15mm Magnification: 8-24 times Near focal length: 8 meters of view: 10000m How to use binoculars: A. IDP AD adjustment Grasp the body and bend it until you see the field of view to set the interpupillary distance. eye settings will be displayed on the IPD scale (please pay attention to the scale settings for later use) B. Focus 1. Close your right eye, observe the object with your left eye, and then focus the binoculars by rotating the central focus wheel until the image is clear. 2. Open the right eye and close the left eye, rotate the right eyepiece until the object is clear and sharp (pay attention to the setting of the diopter scale for future use) 3. Double-sided (eyes), now focusing on objects on the focusing wheel. C. Rubber folding eye mask with glasses after being folded, and can be used without folding after wearing glasses. They provide comfort and ease of viewing : 1. Observing the sun may cause permanent eye damage. binoculars to observe the sun, or even observe the sun with the naked eye. 2. try to clean the inside of the eyes or disassemble the eyes. 3. The lighting function will image the target near the light. packing list: Telescope * 1