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.
Magnification: 20-180 times
Field of view angle: 3.5
Prism system: BAK7
Focusing mode: center focus
Optical coating: broadband coating
Near foot distance: 15m
Size: 30cmX20cmX8cm
Objective lens diameter: 70MM
Prism material: optical glass
Exit distance: 3MM
Waterproof type: waterproof
Field of view: 68M/1000M
Weight: 1400g
Colour: Black
Complete package: telescope, waist bag, lanyard, mirror cloth, manual, packaging box