EXCELLENT OPTICS : Fully multi-coated green film lens with high quality BAK4 prism glass increases light transmission, contrast and resolution, makes your vision brighter and clearer and provides you with sharp and detailed images even in poor lighting conditions.ADJUSTABLE MAGNIFICATION : The variable 15 to 45 times magnification and the dynamic lens focusing system make it easy to enlarge the target. When you set the new larger focus wheel, you can get high resolution images with ease. The adjustable eyecup can be folded up and down for easy viewing with or without glasses.COMPACT AND COMFORTABLE : The small design fits in the palm of your hand and can be conveniently packed in coat pockets, shoulder bags or backpacks. It is very suitable for marksmen, bird watchers, hikers and other outdoor enthusiasts.STRONG AND DURANLE CONSTRUCTION : Durable frame and rubber armouring provide non-slip grip, impact-resistant grip and durable external protection. The nitrogen-filled waterproof and fog-free special design enables the rifle scope to withstand the harshest environments and improve the durability of the product.WIDE APPLICATION : This compact HD spotting scope from BOSSDUN 15-45 x 50 mm is ideal for travel, hunting, climbing, shooting, archery, boating, golf, concerts, bird watching, wildlife watching, hiking, camping, landscape, activities in the Outdoors etc. Best choice for your outdoor adventure compared to other riflescopes, monoculars or binoculars.