Features1. Higher refractive index: In night vision, the refractive index of BAK4 light is higher than BK7, which can effectively avoid dark edges and make the image clearer.2.36mm large objective lens: The larger the aperture, the more light enters the telescope, the clearer the image.3.HD Optical Glass Lens: The full optical glass lens can effectively increase the light transmission in the lens, improve image clarity and improve color reproduction.4. Lightweight and portable: light and compact, easy to use in everyday life.Product specificationType BinocularsModel: 80x80 BinocularsType: Binoculars BinocularsMagnification: 8XMagnification: 8XField of view: 8m/15000mSize: Objective diameter: 36mm, Eyepiece diameter: 20mm, Exit pupil diameter: 3.75mmExit pupil distance: 13.1mmAppearance: Non-slip rubberCoating: Red filmMaterial: Metal cylinder + rubberized protective skinFocusing mode: center focus, fine adjustment of the right eyePackage includes1 * black soft case, 1 * lanyard, 1 * mirror cloth, 1 * English manualThe seller guarantees that their products comply with all applicable laws and are only offered if they comply with Joom's policies and EU product safety and compliance laws.