This digital night device is designed for both day and night use. It has multiple functions like photo,video and replay functions.The X20 optical zoom and 4X digital zoom allow you to view objects clearly.With a special infrared illuminator,the user can see distant target up to 500 meters far away in full darkness.It is perfectly used for camping,hiking,caving,animal observation and other nighttime activities. Features: 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 Design: 32G TF card included can enlarge the storage for your photos and videos.You can connect to computer with USB cable (included) to store/view photos and videos. Mountable Tripod Design: Features a threaded tripod mount for securing to your tripod(not included). Portable: Comes with an adjustable neck strap and a carry bag(color by random). Easy to use with 8 x AA batteries (not included) or your power bank (not included). Application: Suitable for camping,fishing,bird watching,scouting game,security and surveillance, search and rescue, camping fun and exploring caves,nighttime navigation,night fishing and boating etc. Specification: Optical Zoom: X20 Digital Zoom: 4X Angle Of View: 1.8° - 68° Object Aperture: 30 mm Exit Pupil Distance: 12.53 mm F# for Objective Lens: F = 1.6 Image Resolution: 4608 * 2592 Screen Resolution: 854 * 480 Luminance: 5W infrared LED IR Wave Length: 850 nm Working V