Features: 50mm Large Angle of View: the larger the wide angle, the more you see. Objective Lens with Clearer Picture Quality: true color sense, restore the real picture what you see. ED Low Dispersion HD Lens: solve the problems of imaging dispersion and color difference, improve the authenticity and ornamental of the picture. Multi-layer SMC Lens Coating: clear image quality, comfortable and not dizzy. BAK4 Professional Prism Plating High Reflection Medium Film: with high refractive index, no dark angle, true color restoration. Wide Applications: daily life water-resistant binocular is perfect for fishing, traveling, hunting, watching ball games, go to the concert, bird watching, and other outdoor activities.