Features： 1、FMC multi‑layer coating can improve the light transmittance of the lens, increase the brightness, and enhance the color reproduction. 2、Using 42mm large objective lens, the amount of light is sufficient and the image is brighter. 3、BAK4 has a higher refractive index of light, which can effectively avoid dark edges and make the image clearer. 4、Using high‑quality 21MM big eyepieces, the view range is wider, and you can see farther and clearer. 5、Small and portable, it can also be connected to a mobile phone, which is very suitable for outdoor bird watching, camping, and indoor spectators stand. Specification： Item Type: 10x42 Monocular Telescope Model: 10x42 Telescope Body Material: Metal Frame + Outsourcing Rubber Sheath Prism Material: ВAK4 prism Product Color: Black Product Size: Approx. 14.5x8x6cm / 5.7x3.1x2.4in Eyepiece Size: Approx. 21mm / 0.8in Objective Lens Diameter: Approx. 42mm / 1.7in Product Weight: Approx. 315g / 11.1oz Structure: Monocular Telescope Function Type: Zoom telescope Purpose: Civilian telescope Lens Coating: FMC multi-layer broadband coating Focusing Method: Spin up Close Focus Distance: 5m / 16.4ft Magnification: 10X Package List： 1 x Telescope 1 x Storage Bag 1 x Lanyard 1 x Wiper Cloth