1.SINGLE HAND FOCUS, WATERPROOF & FOG PROOF:Ergonomic design helps you focus on your target quickly and accurately with one hand. And the long-lasting rubber armor with stripes makes it comfortable for use, non-slip grip, and long-lasting external protection from your hand. Nitrogen-Filled with a fog resistant coating and O-ring sealed optics prevent moisture, dust and debris to keep it clear all the time. 2.HIGH CONTRAST AND RESOLUTION IMAGES:Latest optics technology, the HD monocular telescope equipped with BAK-4 prism and fully muti-coated lens, superior light transmission and brightness and the light transmittance reaches up to 99.5%. Our monocular has low-light-level capabilities, it could help you see things in low light (can't see anything in complete darkness), providing you with an amazing viewing experience. 3.Application: for adults, concerts, theater, opera, plays, shows, travel, hiking, camping, sport events, bird watching, etc. 4.MONOCULAR WIDELY COMPATIBLE WITH SMARTPHONE Comes with a 2019 est quick alignment smartphone holder and tripods, compatible with almost all other smartphones on the market. Easy to install, providing HD image or video to share with your friends.