4K Binoculars Day and Night Telescope Night Vision Goggles 6X Digital Zoom 300m. This device is a night vision instrument used for observing objects in pitch black or weak light. The observation distance in weak light is not limited, and can reach 300 meters in pitch black environments. Equipped with USB interface and TF card slot, supporting firmware updates and shooting storage. Fully functional, this color screen can be used normally during the day and night, with functions such as taking photos, shooting, playback, and electronic zoom up to 6x. This device is the best auxiliary tool for human night vision extension. Screen:3.0 inch HD IPS. Low light or daytime ovservation distance:2m-? Full black observation distance:300m/984ft(max). Infrared light: 850 nm. White balance:Automatic? Daylight? Cloudy? Tungsten filament? Fluorescent. LCD brightness adjustment:High, medium, and low levels. Storage:32G TF memory card. Power supply: 18650 internal battery. 1 x NVS-40 night vision moncular. 1 x 32G TF card. 1 x USB charging cable. 1 x 18650 battery. 1 x Storage Handbag. 1 x User manual.