1Bak4 prism and multilayer coating film lens, can improve light transmittance and image clarity, with universal clip, can connected to mobile phone through telescope to record good moments. 2FMC multilayer wideband coating film, can reduce reflection rate, large objective lens increase light amount, ensures bright colour picture, high contrast, more real image, more bright and transparent, more lifelike color restoration. 3Helps to improve grip, provides additional protection against harsh using and weather conditions. 4Widen nylon soft shoulder strap very comfortable carrying, very suitable for travel, bird watching, nature, sightseeing, games, sports and travel. 5Has 10X magnification, grasps every detail of picture, mainstream magnification, does not dizzy or shake, effect more amazing when viewed from far distance.Condition: 100% Item Type: Binocular Telescope Material: Optical Glass + ABS Prism Material: BAK4 Color: Black Magnification: 10X Field Angle: 5.6 Prism System: Roof Prism System Optical Coating: FMC Full Surface Multilayer Green Coating Waterproof Performance: Daily Waterproof Patch Form: Screw Up Patch Weight: Approx. 705g Eyepiece Diameter: Approx. 18mm/0.71inch Objective Lens Diameter: Approx. 42mm/1.65inch Exit Pupil Distance: Approx. 20mm/0.79inch Exit Pupil Diameter: Approx. 5.2mm/0.20inch Closest Focal Distance: Approx. 1.2m/3.94ft Universal Clamp Width: Approx. 5-8cm/1.97-3.15inch1 x Binocular Telescope1 x Telescope Cloth3 x Lens Cover1 x Portable Bag1 x Manual1 x Hanging Strap1 x Universal Clamp