20x50 BAK4 Lens Binoculars High-Definition Product detaila: 【Professional High Powered Binoculars】Binoculars with 20X high power magnification and 50mm lens, provides wider field of view at 1000 yards. binoculars for bird watching, concerts, football game,climbing, hiking, driving, watching and scenery. It also features higher-resolution,greater light transmittance and Mindistortion, provides bright and images without color difference. 【Weak Light Vision with Quality Optics 】This HD binoculars watching comes with BAK-4 and film lens, which minimizes the loss of light due to reflection, thereby ensuring brighter and clearer high-contrast images. It has the effect of low-light night vision,It cannot be used in a completely dark environment. 【Binoculars for Adults & Kids】Our HD binoculars perfectly fit adults and some children,it comes with twist-up eyecups for comfortable use with glasses or without. The folding function makes binoculars easy to focus to obtain a clear, very to operate even. 【Durable, & Comfortable Grip】powerful binoculars is made of rubber-armored coating and leather, O-ring sealed optics with fog-proof coating prevents,, and debris from getting inside the binoculars, ensures it,shock-resistance, and provides a firm grip. The lens is provided with full broadband coating, A + 1 coating process, and the light transmittance is up to 99.5%. Specifications: Model: 20 × 50 Specification: 20 × 50 (20 times, lens = 50MM) Field of view: 119M / 1000M Prism: BAK4 Brightness index: Low light coefficient: 22.36 Waterproof: Class A Focusing system: center / right eye focusing Rubber shell:-resistant rubber sheath 1000 meters horizon: 56/1000 Operating temperature: -40-+50 degrees Celsius Preservation: Store in a dry environment Note: Please allow 0.5-1cm errors due to manual measurement Due to the difference between differentmonitors, the picture may not reflect the actual color of the item. Package Included: 1 × Telescope, 1 × Shockproof Package, 1 × Mirror Cloth 1 × Lanyard 2 × Lens cap