Technical Specifications Focus system Center Magnification 12x OBJ.LENS DIA. Φ50mm TYPE OF PRISM Roof Number of Elements & Group 7 elements/5 groups Field of View\ Angle 6.0°/65M Eye Relief 14.5MM Exit-pupil Diameter Φ4.2MM Interpupillary Distance 74mm---57mm Waterproof IPX7 Waterproof 1M/30min Eyecups System Twist-up   We keep on testing, designing, and innovating products that combine ergonomic comfort with ultimate durability, and dedicated to providing Rexmeo users with reliable household solutions to elevate their everyday living. Whether you need to clean your lawn, upgrade your bathroom or make home repairs, we are here for you – and your satisfaction is our priority Bring the Beautiful World Close to You The Rexmeo 12x50 HD Binoculars with 12x magnification, 50mm objective lenses, advanced BAK4 prism, and a full multi-layer coating provides bright and outstanding color fidelity. The metal body is covered with anti-drop rubber, which ensures excellent durability and shock absorption. IPX7 waterproof design is suitable for bird watching, hiking, and hunting in all weather conditions. What’s in the Box: 1 x Rexmeo 12x50 HD Binoculars 1 x Carrying bag with belt loop for storage 1 x Rubber lens covers for glass protection 1 x Neck strap for easy carrying and use 1 x Cleaning cloth 1 x Instruction manual 5-Set BAK4 Prism Featured with a 5-set BAK4 prism – high density with better optical quality and a higher refractive index than BAK7 – it can eliminate the internal light divergence to provide exceptional brightness, clarity and sharpness. FMC Coating Fully FMC multi-coated green lenses increase light transmission, improve clarity and contrast, and minimize lens reflections for HD images. Ensures a clearer view, more balanced colors, with better brilliance and contrast. IPX7 Waterproof & Fogproof Argon purging and O-ring seal provides IPX7 waterproof and fogproof performance in all environments. Large View 50mm large eyepiece is larger than ordinary lenses, with strong light-gathering ability, it makes full use of 12x magnification to deliver a larger and brighter image. Adjustable Eyecup Both the center focus knob and the diopter adjustment ring are threaded to increase the friction between your fingers and the knob, making it easier and faster to focus when looking at moving objects. The swivel eyecups are designed for quick and easy adjustment for a more comfortable viewing experience for eyeglass wearers. Durable Metal Body & Rubber Armor Durable metal body and armored with natural rubber material, and the unique anti-skid design prevents it from slipping from your grip or shaking.