4K 10-30X25mm Super Telephoto Zoom Monocular Telescope Portable Product selling points: [Super telephoto lens monocular]: The telescope's anti-shake system and special tripod gyroscope make the telescope's field of view very stable when magnified multiple times. [Small light night vision]: The built-in night vision function allows you to use it normally at night. Turn on the auto focus and blur the background function, brake you can focus on observing the person or that needs to be observed. [Lightweight and portable]: is made of titanium alloy, which has higher specific strength and weighs 1.1 pounds. When stowed, the length is 7.87 inches, and you can easily put it in a backpack or pocket when hunting, traveling or camping. [Waterproof, dusproof, shockproof design]: Nitrogen-filled and O-ring optical components can , and debris, and ensure the function of life. [Ideal for outdoor sports enthusiasts and wilderness explorers]: Hand-held equipment is essential equipment for bird watching,, hunting, hiking, mountain climbing, camping, camping, surveillance and travel. Description: lens diameter: 30mm Magnification: 7-17 times (corresponding to adjustment level 10X100) Eyepiece diameter: 22mm pupil diameter: 4.2-1.7mm Eye relief: 14-12mm Field of view: 230-110FT 1000YDS Field of view: 4.4-2.1 degrees Minimum focusing distance: 2.5m Size: 173/128x43mm (stretching and shrinking) Weight: 160g/240 Prism: BAK4 Coating: Colour: Black Eye mask: rotating eye mask Waterproof: yes Tripod can be connected: Yes Connected phone: yes Used for: racing, beach, bird watching, boating/yachting, horse racing, hunting, outdoor activities, sports,, travel Material: optical glass Type: Monocular Products include: 1x 10-30X25mm telescope monocular 1 monocular telescope 1 storage bag 1 rope 1 piece of cloth 1 tripod 1 clip