HD Dual Focus Scope Monocular - Approximately 10x magnification with a 50 mm objective lens for a high quality image at distance. The design provides a wider field of view to locate subjects quickly and then zoom in for detail. - Built for outdoor durability: the monocular is waterproof, fog-proof, dust-proof, and shockproof. It includes a built-in lens dust cover and o-ring sealed optics to prevent dust, moisture, and debris from entering. Note: do not use for extended periods in heavy rain or submersion. - Comfortable and ergonomic, one-handed operation: the rugged rubber armor with textured grip enables a secure, non-slip hold and fast, accurate focusing. - High contrast and sharp images: featuring a BAK-4 prism and fully multi-coated lenses to deliver clear, bright views with good contrast. It offers low light performance for viewing in dim conditions, though it is not suitable for complete darkness. - Practical use scenarios: - Camping and hiking for distant scenery or wildlife observation - Bird-watching to spot birds in trees or on distant trails - Stage watching or other events where you need to see details from afar - Key attributes at a glance: function includes long-distance viewing with dual focus, compact monocular design, 50 mm objective lens, durable rubber armor, and optics optimized for clarity and low light performance.