Adult 30x52 scout telescope, equipped with BAK4 prism and blue film lens. Allow more light transmission and obtain more brightness. 52mm green coated lens. All these elements of the oscilloscope can provide high-definition images and aurate color reproduction. It is Used for bird watching, hunting, hiking, camping, sightseeing, etc. The oscilloscope can be connected with a mobile phone to take pictures/videos. Explore the nature of the world easily through the sn. And this phone adapter is Used for most phone models (width between 57-80mm), (because only one lens can be fixed, it may not match well). Help you observe the distant world through more real details and share it with your friends and family.br/ br/ 30X52 Monocularbr/ specification:br/ br/ Magnification: 12 timesbr/ Coating: Green Filmbr/ Objective lens diameter: 42br/ Prism type: BAK4 prismbr/ Coating: multilayer blue filmbr/ Field of view: 66/8000Mbr/ Focusing : eyepiece focusingbr/ Colour: Blackbr/ Waterproof: life waterproofbr/ Weight: 360gbr/ Lens: All-optical glass lensbr/ Size: 152*52mmbr/ Prism system: roof typebr/ br/ Tip:br/ br/ Please do not use the monoculars to look directly at the sun, otherwise it will hurt your eyes.br/ If you do not use it for a long time, please keep it in a dry place.br/ Even if it is waterproof, store the scope in a dry place. It can resist light water, but cannot be used in heavy rain or immersed in water for a long time.br/ Please wipe the lens with a clean dry cloth. If there is a stubborn stain, wipe it with a cloth dipped in alcohol. This will be easily deleted.br/ The width of the mobile phone adapter is 57-80mm, which is Used for almost all mobile phones on the market.br/ Monoculars will help you see things in low light, but cannot help you see things in total darkness.br/ When the phone is connected to a single-scope, the picture is a circular view with a black environment. Please enlarge th