Specifications: Color:Black; Magnification:10x-30x; Objective Lens Diameter:50mm; Prism Type:Bak-4; Focus System:Center; Field Angle:2.4 Degree- 1.9 Degree; Exit Pupil:5mm-1.7mm; Exit Relief:16mm-16.5mm; Lens Coating:Fully Multi-coated; Eye Cup:Twist-up; Close Focusing Distance:3m/9.8ft; Waterproof:Yes; Field of View:126ft/1000 yds; 42mm/1000m-99ft/1000 yds; 33mm/1000m; Net Weight:16.5oz/468g; Dimensions:7.6x2.9x2.4in/193x75x61mm; Features: Fully waterproof and fog proof prevents moisture, dust, and debris from getting inside the monocular-designed to inhibit internal fogging. 50mm multi-coated objective lens provides bright and clear views. Fully multi-coated optics to enhance image quality. The rubber eyecup easily twists up/down for use with spectacles. Long eye relief and adjustable eyecup for comfortable viewing with or without eyeglasses. Package Included: 1 x 10-30x50 Monocular; 1 x Lens Cover; 1 x Eyepiece Cover; 1 x Lens Cleaning Cloth; 1 x Manual; 1 x Storage bag;