WG550B 500M HD Night Vision Binoculars Cameras 20×31 Telescope Hunting Optical 850nm IR HD Night Vision Binocular Night Goggles. High Performance: Achieves clear view up to X20 optical zoom and 4X digital zoom allowing to zoom in or zoom out. Multifunctional: 3.9 large view screen with high definition for binocular, which has photo, video and replay functions. Support Day or Night Use: Digital night vision binocular for both day and nighttime use. Built-in 5W infrared LED and 850nm illuminator, allows viewing in the dark up to 500m/546yard. And IR light for easy adjustment. Ergonomic ...