Portable Binoculars
This portable 60 * 60 binoculars are small and portable, so you can carry them with you wherever you want. The first function of a telescope is to amplify the angle of distant objects, enabling the human eye to see details with smaller angular distances. The second function of the telescope is to send the light beam collected by the objective lens that is much thicker than the pupil diameter (maximum 8 mm) to the human eye, so that observer can see the dim objects that they could not see before.
