Item Type: Binoculars Prism Material: BAK4 Parameters: 100x22 Color: Black Size: Approx. 90 x 105 x 40mm/3.54 x 4.13 x 1.57in Objective Lens Aperture: Approx. 22mm/0.87in Out Pupil Diameter: Approx. 1.1m/3.6ft Pupil Distance: Approx. 15mm/0.59in Close Focus Distance: Approx. 5mm Magnification: 10X Field of View Angle: Clear Wide Angle Prism System: Roof System Field of View: 3000M, 30000M Focusing Mode: Intermediate Focus Optical Coating: Multilayer Broadband Green Film Waterproof Type: Life Waterproof Focusing Mode: Intermediate Hand Wheel Focus, Right Eyepiece Parallax Adjustment Packing List: Binoculars, Belt Bag, Lanyard, Wipe Cloth, Manual 1、Adjustable: Binoculars easily adjust your vision clarity using the central focus wheel, its manual adjustment is accurate and easy to use for anyone, simply turn the focus wheel up or down to find the ideal adjustment that provides proper and comfortable eye relief. 2、Waterproof Design: The prisms of this HD binoculars have a waterproof coating and are completely fogproof, which makes them extremely durable for everyday use and in the harshest climatic conditions such as mountains and deserts. 3、Comfortable to Hold: The binoculars are shaped to fit the user's hand perfectly, and their durable, non slip textured housing helps with grip and provides a protective rubber armor that absorbs impact. 4、Application: With their incredible portability and night vision, the foldable binoculars are ideal for bird watching, camping, hiking, concerts and any outdoor activity with a fanny pack, lanyard and wipe cloth. 5、Perfect Gift: Binoculars are convenient and easy to use with a hand wheel in the middle providing focus adjustment and parallax adjustment in the right eye. Kids will feel like their binoculars are fully realized. Perfect for a great gift for our kids.