1,It is waterproof and mildew resistant and will not be affected by daily use in rainy or humid environments. 2,Metal lens barrel, outsourcing rubber, exquisite and comfortable feel, beautiful, fine workmanship, easy to use. 3,Coating, multi‑layer vacuum high light transmittance film, strong light transmittance and high definition. 4,Used for bird watching, watching sports games or concerts, outdoor travel, admiring the foreground, etc. 5,Eye distance adjustment, manually adjust eye distance, look and feel more comfortable. 1 x Binoculars1 x User Manual1 x Lanyard1 x Wiping cloth1 x Telescope bag4 x Eyepiece cover Item type: Binocular TelescopeMaterial: Metal and rubberColor: blackWeight: Approx. 960g Specifications: 20X50Prism type: BAK-4Magnification: 20 timesObjective lens diameter: Approx. 50MM/2inEyepiece diameter: Approx. 24MM/ 0.9in (super large eyepiece design)Viewing angle: 8.2 degreesMinimum focusing distance: Approx. 5.0M/ 16.4ftExit pupil diameter: Approx. 18MM/ 0.7inField of view: 56M/1000MViewing distance: Approx. 17MM/ 0.67inRelative brightness: 25.00Waterproof and anti-fog: Yes Expand both sides of the eyepiece size: Approx. 20cm/ 7.9inShrink size: Approx. 18.5x18cm/ 7.3x 7.1inProduct details:Eye distance adjustment, manually adjust eye distance, look and feel more comfortable.Focusing wheel, rotating focus, non-slip design, a single finger can complete the operation.Eyepieces, FMC broadband coating, high light transmittance can effectively maintain color and increase color reproduction.Objective lens, 50MM large objective lens, high transmittance of optical lens, clearer viewing.Tripod connection hole, you can connect a tripod and use your mobile phone to watch the scenery in the distance. The metal material is strong and delicate. 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.