With this device, you can have a single optical device that is usable 24 hours/day: from bright sunny daylight through misty twilight to total darkness. Day/night integrated binocular combines a perfect clear daytime optics with an advanced night vision image intensified technology. Large fast lenses, coupled with high quality image intensifier tubes contribute to the best image possible to achieve with the 1st generation technology. The device is very easy to use: you just slide a single switch to change day and night modes. Ergonomic, lightweight, shock and weather proof,  BDN 14x50 is the most compact and robust integrated Day/Night devices currently available on the market.