Very good product for its price, no need for settings except the distance between the eyes, binoculars bright, even at night the result is more than satisfactory, I have been very surprised by the way ... To In terms of material quality, they seem solid, are not very heavy and are delivered as specified in the announcement with sleeves protections lenses, a strap to wear around the neck, as well as a cover ' Cleaning Cloth ... Really happy with my purchase ...