Multi-coated optics ensure superior light transmission and brightness This product has dual focus function (front and rear adjustable zoom) One-handed operation Powerful, ultra-compact, super lightweight Objective: Objective or front lens diameter. The larger the objective, the more light enters the binoculars and the brighter the image Magnification: 10-90x25 Field of vision: 0.5M or 3000M Field of view: 5.8andatilde Eye lens diameter: 12 mm Objective diameter: 25mm Monocular size: (108-192) andtimes 32 mm Prism type: BaK4 Weight: 108g Material: all metal Color: black. Specifications: Multi-coated optics ensure superior light transmission and brightness This product has dual focus function (front and rear adjustable zoom) One-handed operation Powerful, ultra-compact, super lightweight Objective: Objective or front lens diameter. The larger the objective, the more light enters the binoculars and the brighter the image Package Included: 1 x 10-90x25 monocular telescope 1 x cleaning cloth 1 English user manual 1 x Lanyard 1 x Telescope package 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.