Monoculars Telescope astronomical binoculars adults high power for indoor and outdoor

Adjustable spiral eyepatch of eyepiece can transform the distance of exit pupil and suits for people who wear glasses,With a hanging rope, easy to carry,It's for boating, bird watching, auto racing, horse racing, etc.
Angle of view : 7
Eye Relief : 21mm
Exit Pupil Diameter : 7.2m
Minimum Focus Distance : 5m/16.4ft
Product color:
Product size : 170X208X79
Product weight : 1200g+756g
BKA4 prism: The spot light transmittance is high, the picture is transparent, clear and bright.
Wide-angle design: Built-in wide-angle design for wider viewing area
Ultra-high transmittance, double-sided broadband coating, average light transmittance in the spectral range from 400 nm to 600 nm exceeds 99.5%