1.HD zoom focus monocular telescope with Good-quality optics. The adult monocular telescope adopts BAK-4 prism and FMC lens, the light transmittance is as Good as 99.5 percent , giving you clearer, brighter and more colorful images. 2.Perfect Design: Fully coated optics ensure excellent light transmission and brightness. One-handed, compact structure, easy to carry. The design zooms and looks elegant. Quality remains beautiful 3.What can our monocular telescopes do Our Good-definition are suitable for enjoying beautiful nature, bird watching, sports and more. It helps you see in low light, but not in the dark. Cannot be used at night. 4.: The monocular telescope has coated and O-ring sealed optics, and due to its small size, you will always have room for this handheld monocular telescope. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.