Monocular Telescope Golf Range Finder

Product information:
Objective lens: 28mm;
Eyepiece: 16mm;
Resolution: 13 ″;
Magnification: 7 Times;
Farthest test distance: 930 yards (1 yard = 0.914 meters)
Viewing angle: 7.8 °;
Power supply: use two cr2032 button batteries
Volume: 90mm × 50mm × 38mm;