Feature: 1. Life waterproof,which can better extend the service life of the telescope. Easy to deal with any harsh environment. 2. BAK4 prism and multi-coated lens for improved light transmission and image clarity. 3. Central focusing knob for smooth operation. 4. Broadband green film coating to increase light transmittance and make the imaging color fuller. 5. and compact, good for camping, hiking, concerts, bird watching, hunting, traveling, golfing, sporting events and other outdoor activities. : Mode:2000X25,16X52 Prism material:BAK4 Lens coating:Blue film eyepiece, Green film objective lens Field of view: 20000M color: Black Material: plastic + metal with better quality and improved anti-falling performance, can effectively prolong the service life of telescope, which is unmatched by other plastic pallets! Note: 1. Keep a proper exit pupil distance with the eyepiece. If the stickers are too close or too far away, you will feel dark shadows in of view when observing, and you will not be to get a complete circle of vision. 2. Adjust the interpupillary distance. Adjust the distance between the two lens barrels to match the pupil distance of your eyes, so that the images can be seen to overlap. 3. Focusing. Slowly turn the focus wheel to focus and adjust the sharpness! 4. Do not use the telescope to observe the sun directly, as this will cause serious damage to the eyes or even blindness. Package Contents: 1 x Binocular telescope 1 x single-tube telescope 1 x Lens Cleaning Cloth 1 x Lanyard 1 x Storage Pouch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.