Digital Night Vision  Electronic View Finder  F1.4 Large Aperture  IR LED  Visible Distance: 200M (220 yards) at Night, 500M (550 yards) at Day Zoom in and out Capable (up to 2X)  Auto Day and Night Dual Mode Switch New  Button to Adjust the Screen Brightness for Eye Comfort New  Full Range View New  Improved Battery Compartment for Easier Battery Installation New  Battery Life: Up to 10 hours for Day Use, 6 hours for Night Use  Perfect for Hunting, Sports Watching, Security, etc.  Patented in CN, EU and U.S.