A hub includes a hub body having a speaker for outputting sound; a communication module disposed in the hub body and wirelessly communicating with peripheral devices; a hub base for supporting the hub body at a lower side thereof; a cover coupled to an upper part of the hub body and displaying, on an upper surface thereof, an interface screen formed on the basis of the information transmitted and received through the communication module; and a grille formed in the shape of a vertically long cylinder, which has a plurality of through-holes, such that the hub body is disposed therein, the upper end is coupled to the cover, and the lower end is coupled to the hub base.