NV8310 Naked-eye 3D Head-mounted Binocular Portable Night Vision Device Built-in Dual 1.4-inch 390×390 TFT Inner Screen Highlights: – Dual-screen binocular glasses naked-eye 3D display technology restores the real three-dimensional scene seen by the human eye (the patent for naked-eye 3D night vision devices has been authorized in various countries). Built-in 1.4-inch 390×390 dual screen, display 7-level brightness adjustment. Fully independent binocular technology, can independently adjust the left and right eye vision compensation (refractive adjustment range +/-3.5, both myopia, farsightedness 350 adjustment compensation), 7 times magnification. The product is small in size, light in weight, and has multiple portable usage modes. It can be worn around the neck with straps, head-mounted with straps and tactical helmets. 250m300m full black observation distance, 1minfinity low light observation distance. Built-in 2600mAH lithium battery. High-power infrared light, 7-speed infrared light brightness adjustment. 4 color effects: color, black and white, moonlight green, infrared light – Pupil distance adjustable range of 60-72mm – IP54 waterproof Main Application Scenarios: – Tactics, reconnaissance, hunting, security and surveillance, camping fun, cave exploration, night fishing and boating, wildlife observation and photography, etc. Specification: – Photo resolution: 36M, 12M, 8M, 5M, 3M, 2M, 1M – Video resolution: 4K, FHD, HD – Sensor: 2.0MP starlight sensor – Display screen: inner screen is 1.4 390×390 HD TFT, 7-level brightness adjustment, free switching between single and double screens, 7X magnification – Eyepiece: fully independent binocular technology, can independently adjust the vision compensation of left and right eyes (refractive adjustment range +/-3.5, both myopia, farsightedness 350 adjustment compensation) – IR LED: 3W, 850nm strong infrared spotlight, 7 grades infrared adjustment – Lens: F1.0 larger aperture, f=25mm, FOV 10° – Auto off: 1 min/3 min/ 5 min/ 10 min/ OFF – View distance in complete darkness: about 250-300 meters – Low light observation distance: 3 meters infinity – Digital zoom: 8X – Storage media: support 32G TF card – Power supply: 3.7V, built-in 2600mAH lithium battery – Operation temperature: -20? To +50? – Storage temperature: -30? To +60? – Dimensions & weight: approx. 154mm x 134 x 60mm / 363g Package Included: – 1 x Set of Binocular. Usually it costs about 30USD-50USD. Thanks for your understanding. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.