Vixen | Producer of optics from astronomical telescopes and binoculars
Monoculars are small telescopes for viewing close or distant with one eye. It is about half the size of binoculars, so highly portable. Even if you take it to theaters, art galleries, museums, etc., it won't get in the way as it is not bulky. It is also a good companion for mountain climbing and traveling where you want to lighten your luggage.