Bial Super Clear 16x52 Dual Focus Telescope Optics Zoom Monocular Scalable Telescopic 66m/ 8000m Mulit-coated optics upgraded version of the green With the low-light-level night vision built-in design, it has highly distinct version as long as with the reflect light in night.Maybe could not compare with the truth night version device. And the Dual Focus design: could look the much longer distance and more distinct Rubber Armored for rugged field use center focusing mechanism for quick, easy focusing Suitable for Golf, Scope, Camping, Hiking, Fishing, Bird watching, Concerts, etc. waterproof design: the mirror is full of the high purity nitrogen, waterproof and antifogging, you can use it in raining day and humid environment without any worry.