A sound apparatus is disclosed. The sound apparatus includes a body, a bracket coupled to a lower portion of a rear surface of the body, a plurality of upper links, one end of each of the upper links being hinge-coupled to the bracket, a middle frame hinge-coupled to the other end of each of the upper links, a plurality of lower links, one end of each of the lower links being hinge-coupled to the middle frame, and at least one speaker module hinge-coupled to the other end of each of the lower links to vertically move according to rotational movement of the upper links and the lower links, wherein a direction of rotation of the upper link is opposite to a direction of rotation of the lower links, and the middle frame moves in a lateral direction during the rotational movement of the upper links and the lower links.