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 full darkness 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. Electronic zoom:6x Objective lens:25mm Low light or daytime ovservation distance:2m-∞; Full black observation distance:300m(max) Recording resolution:4K(3840*2160)/2K(2560*1440)/1080FHD(1920*1080)/ 720P(1280*720)/VGA(640*480)/QVGA(320*240) Camera resolution:36MP/32MP/30MP/24MP/20MP/16MP/12MP/10MP/8MP/5MP/3MP/VGA Infrared light: 850 nm White balance:Automatic, daylight,cloudy,tungsten filament, fluorescent ISO:Auto,100,200,400,800 LCD brightness adjustment:High, medium, and low levels Light source frequency:50HZ/60HZ Storage:32G TF memory card Language setting:Chinese/Traditional/English/Japanese/Italian/French/German/Russian/Spanish/Portuguese Voltage:3.7V Power supply: 18650 internal battery Charging:5V/1A TYPEC Screen:1.54 inch HD IPS Temperature:-5~40℃ Humidity:0-80% Note: Due to different production batches, there may be slight differences in products. Colour:Black Material:plastic Package Contents: 1 x NVS-20 night vision moncular Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.