FMC optical lens and BAK4 prism With 80mm wide lens and refined multilayer coated optical lens with BAK4 Porro Prism, the transmittance reaches 99.5%, which makes the vision clearer and wider. For long distance viewing, a dual focus dial system provides quick and precise focus adjustment, lets you lock onto your target and zoom in for more detail clearly.20x-60x Power Magnification This spotting scope features a powerful zoom magnification range that can be adjusted from 20x to 30x and 60x, the ergonomic 45 degree tilted eyepiece design allows for more comfortable viewing . brings nature closer to you than ever. Perfect for bird watching, target shooting, moon watching, travel, hiking, camping, archery, astronomy, etc.Durable Rubber Armor Construction: Durable frame and high-quality rubber armor provide non-slip grip, shock-proof grip and durable external protection, allowing the scope to withstand the harshest weather conditions . Extendable sun visor built on the main barrel to reduce glare. Comes with a tripod allows rotation of the eyepiece in a lateral position, providing adjustable viewing angles.Powerful accessories An included phone holder allows you to take photos and videos of what you have observed. Bring nature closer to you and easily explore the distant world through the phone screen. A tripod gives you a more stable observation from all angles. Carrying case, cleaning cloth make you more convenient to carry and maintain.