High quality binoculars for clear vision Features 1.Wide-range in application of interior and outdoor. 2.Three layers of lens-coating FMC for best visual enjoyment. 3.Durable and protective, Rubber-armored. 4.FMC glass lenses deliver the ultimate brightness and resolution. 5.Smooth central focus knob for quick viewing. 6.Comfortable vison with high resolution lens. 7.Appreciated for a streamlined shape and durability. 8. Bak4 lens optical binoculars telescope. 9.HD professional 100% Canon powerview porro prism (large eyepiece design)