Fmc multi-layer coating reduce color variation, light transmission rate up to 99%. Bak4 high transmission prism effectively improve the light transmission, the image is clear. Three kinds of magnification continuous zoom 25x50x75x different magnification, to meet your different observation needs. Includes portable desktop tripod the desktop tripod is perfect for range spotting, phone adapter makes it easier to share videos and photos. Applicable to a variety of scenes nature observation, wilderness adventure, outdoor sports, stargazing, bee hunting, sports competition, performance activities, etc.