1. High-definition zoom monocular telescope with high-quality optical components. The adult monocular telescope adopts BAK-4 prism and FMC lens with a light transmittance of up to 99.5%, presenting you with clearer, brighter and more colorful images. 2. Perfect design: Fully coated optical components ensure excellent light transmittance and brightness. One-handed operation, compact structure, easy to carry. Design zoom, elegant appearance. The quality is still exquisite 3. What are our monoculars used for? Our high-definition telescope is suitable for enjoying beautiful natural scenery, bird watching, sports, etc. It can help you see clearly in low light, but it can't see clearly in the dark. It cannot be used at night. 4.: The monocular telescope adopts coated and O-ring sealed optical components, and its compact size means that you always have room for this handheld monocular telescope.