High contrast and bright images The Monocular telescope uses a BAK4 prism and fully multi-coated lenses. A larger objective lens gathers more light for brighter, clearer views with edge-to-edge detail and minimal black bars. Fog proof and weather resistant The compact, sturdy body withstands harsh weather. The interior is filled with high-purity nitrogen, making it waterproof and fogproof for rainy days and humid environments. Stable at high magnification An anti-shake system and a tripod with a 3D gyroscope keep the field of view steady even when magnified. Easy to use One-handed operation. Simply adjust the eye cup and focus wheel until the image is clear and bright. Practical use scenarios - Birdwatching and wildlife viewing in forests or wetlands - Hiking, travel, and sightseeing for distant landscapes - Outdoor events and sports from a distance, or concerts where seating limits viewing range