Binoculars features: 10-300X40mm Super Telephoto Zoom Monocular Telescope Portable with Smartphone Adapter & Tripod for Birdwatching, Hunting, Hiking, Sightseeing, Concerts, Football Matches (black) [Super Telephoto Lens Monocular]: The telescope's anti-shake system and special tripod 3D gyroscope provide a stable field of view across multiple magnifications. [Small Light Night Vision]: Built-in night vision function allows normal use at night. Auto focus and background blur features help you concentrate on the subject being observed. [Light and Portable]: The shell is made of titanium alloy, offering high strength-to-weight ratio and weighing only 1.1 pounds. When stowed, it measures 7.87 inches in length, making it easy to carry in a backpack or bag during hunting, traveling, or camping. [Waterproof, Shockproof Design]: Nitrogen-filled waterproof construction with optical O-ring seals prevents moisture, fog, and dirt intrusion, ensuring reliable performance in various conditions. [Ideal for Outdoor Sports Enthusiasts and Wilderness Explorers]: This handheld device is a useful tool for bird watching, wildlife observation, hunting, hiking, mountaineering, camping, surveillance, and travel.