Even in low light conditions, such as at dusk and dawn, it can also provide the maximum brightness of the image Specifications: Magnification: 10x Caliber: 40*60mm Focus System: Monocular Field Of View: 1500M/9500M Objective lense Diameter：42mm Eyepiece Diameter:18mm Exit Pupi Distancel: 14.5mm Exit Pupi Diameter : 4.5mm Monocular usage manual 1.Usage ⑴：Single hand holding a telescope lens barrel ,see a circular field of view,toggle lens adjusting hand wheel,until you see the clear scenery so far.Eyepiece rotary parts can be compensated more precise focusing. ⑵：This product can be observed objects 1.5 meters,is the other telescope is not up to the function. 2:Important Notice Forbidden to clean the inner parts of the monocular or disassenbly the monocular. Caution:Do not allow using the monocular to watch the sun directly!Use the monocular to watch the sun will causing incurable injure to human eyes. Package Includes: 1 x Monocular Telescopes 1 x Triangular scaffold 1 x Mobile phone clip 1 x Lens Cloth 1 x Lanyard 1 x Bag 1 x Instructions 1 x warranty cards