Eyes of Charming

From Dungeon Master's Guide, page 168. Found on Magic Item Table F.

Description
Wondrous item, uncommon (requires attunement).

These crystal lenses fit over the eyes. They have 3 charges. While wearing them, you can expend 1 charge as an action to cast the Charm Person spell (save DC 13) on a humanoid within 30 feet of you, provided that you and the target can see each other. The lenses regain all expended charges daily at dawn.