This Binocular have been created to provide wildlife enthusiasts or any binoculars users with the highest performance and innovative technology. We combine quality, functionality and reliability in every aspect of our binoculars to offer you the best experience in your observation of nature.Functions: 1.FMC(fully multi-coated) green film lens and clear prism, works well at night or in weak light conditions,delivers higher light transmittance and sharp, high-contrast views.2. BAK-4 prism makes bright, clear & sharp viewing experience.3. High temperature resistance (works well under -40℃~+50℃ harsh environments.)4. Made of non-slip rubber armor and leather,100% waterproof structure, smooth central focus knob, all metal structure makes it rather durable.Specifications:Magnification: 12×Close focus distance: 5MEyepiece diameter: 18MMInterpupillary distance: 55-75MMObjective lens diameter: 42MMPrism system: BAK4 prismMain material: optical lens + rubberLens coating: FMC multilayer coatingField of view angle: 5.4°Waterproof grade: life waterproofExit pupil diameter: 4.2MMProduct size: 133×150×55MMExit pupil distance: 14MMNet weight: 532 gramsPackage Includes:1*Anti-counterfeiting color box1*Binoculars1*Leather backpack1*wipe1*telescope mirror belt