The magic mouth will display a brief message on the screen of players who approach its vicinity. For example, you can use it in your house to tell visitors about the house or in a guild hall to remind members of upcoming events.
Items with identical functions but different styles can also be purchased from the city-themed merchandise vendors during any of the City Festivals held each month. For example, you can buy a version of this item styled to match other Freeport furniture, one to match New Halas and so on.