Full black observation distance from 250 meters to 300 meters, weak light observation distance from 1 meter to infinity. 3W 850nm strong infrared spotlight, 7-speed infrared brightness adjustment. Starlight level SENSOR, low light long-range observation. Built in ultra high definition large screen, 7-speed brightness adjustment. Immersive eyepiece design, fully aligned with the eye, reduces external glare, adjustable visual compensation (with a refractive adjustment range of plus or minus+/-4, compensating for myopia/hyperopia by 500), 7x magnification. The button comes with a backlight LED, making night operation more convenient and can be turned off. The product is small in size, light in weight, portable to use, and suitable for various types of headwear. The product adopts a silicone anti slip design, enhancing the feel and resistance to falling. Built in 2500mAh lithium battery, rechargeable, can be connected to an external power bank. 4K, 1080P video. Multiple color effects: color, black and white, luminous green, infrared light. Hunting, Reconnaissance, Security and Surveillance, Camping fun, Cave exploration, Night fishing and Boating, Wildlife observation, Safety and photography, outdoor activities, night activities. 36M? 12M? 8M? 5M? 3M? 2M? 1M? 360P enhanced night vision(The 360P enhanced Night Vision mode is twice as brightas the normal night vision mode). 4K, FHD, HD, 360P night vision enhancement (360P night vision enhancement mode is twice as bright as normal mode). F1.2 Large aperture, f=25mm, automatic infrared filter, FOV=10° Eyepiece: Immersive eyepiece design, complete eye fit, reduce external stray light, adjustable vision compensation refractive. Adjustment range +/-4, both short-sighted /. Far-sighted 500 adjustment compensation. Built-in ultra HD large screen 480. (RGB)640, 7 levels of brightness adjustment. 3W, 850nm strong infrared. Spotlight, 7 levels of infrared adjustment. Viewing distance in complete darkness. 1 meters to infinity. Color, black and white, luminous. Battery, rechargeable, external mobile power. Supports setting date and time. Date and time stamp on photo and video files. 20 ° C to +50 ° C. 30 ° C to +60 ° C. 1515961 mm / 242g. USB cable, manual, cleaning. Binocular Night Vision Telescope1 Instruction manual 1. Communication is always the best way to solve problems. We will be grateful for that.