CLEARLY SEE IN THE DARK WITH THE RANGE UP TO 1640FT With built-in 850NM 5W Infrared Illuminator and all optical binoculars system, JZBRAIN infrared night vision binoculars allows you observe objects at 984ft/300m in complete darkness with 8 AA batteries. The range will up to 1640ft/500m when connecting with an external power bank. NOTE: Please remove the IR lens cover and turn on the infrared when use it at night. RECORD Full HD 1080P IMAGES VIDEOSFeatured 3.6x optical zoom, 3x digital zoom, 2x IR zoom and 31mm objective aperture offers clearer view of details with higher cost performance. It allows for quick adjustment of the magnification from 3.6 up to 10.8 power. High-sensitivity CMOS Sensor achieves 1080P HD images/videos(1920x1080P images 1080p FHD 30FPS video). Share your adventures with family anytime as it can be connected to your PC(Mini B cable) or TV(AV cable).SUPER LONG WORKING TIMEJZBRAIN infrared binoculars powered by 8x1.5v AA batteries(TYPE: LR6 ALKALINE BATTERIES) gives you 10 hours of working time with IR OFF or 4 hours with IR on(LEVEL 5). It can be connected to power bank(5v 1A input) for much longer usage. Lowering the level can extend the use time. 5 IR illumination levels are easily switchable. (NOTE: Do NOT use R6S, R6C or R6P Carbon batteries or rechargeable batteries.)4" LARGE VIEWING SCREEN WITH ADJUSTABLE BACKLIGHTBuilt-in 3.6 TFT LCD screen converts to 4" large viewing glass by the convex lens, which makes it easy and comfortable for view. We have added the function of adjusting the backlight (level 0-15) to protect your eyes and not be easy to be noticed in the dark. With IR zoom, you can also adjust angle of view from 5.2to 9.2. The smaller the angle of view, the more focused, the clearer the objects can be seen.