A hub comprising: a hub body comprising a speaker configured to output sound; a communication module disposed in the hub body to perform wireless communication with a peripheral device; a hub base configured to support the hub body from below; a cover coupled to the upper portion of the hub body and configured to display an interface screen, configured based on information exchanged through the communication module, through an upper surface thereof; and a grill having a vertically elongated cylindrical shape and formed with a plurality of through-holes, the hub body being disposed inside the grill, the grill comprising an upper end coupled to the cover and a lower end coupled to the hub base, wherein the cover comprises: a cover housing coupled to the hub body and formed with an opening in an upper surface thereof; a display disposed in the cover housing to output the interface screen; and a window disposed in the opening in the cover housing and configured to project the interface screen at an upper side of the display, wherein the window is disposed to tilt upwards from a front side to a rear side, and is disposed such that a vector, obtained by orthogonally projecting a vector which is normal to an upper surface of the window, to an upper surface on a predetermined horizontal plane, faces forwards, and wherein the grill is formed of a metal material, and a shape obtained by orthogonally projecting a cross-section of the grill which cross-section is orthogonal to the elongated cylindrical shape of the grill on the horizontal plane corresponds to a shape obtained by orthogonally projecting the window on the horizontal plane. a hub body comprising a speaker configured to output sound; a communication module disposed in the hub body to perform wireless communication with a peripheral device; a hub base configured to support the hub body from below; a cover coupled to the upper portion of the hub body and configured to display an interface screen, configured based on information exchanged through the communication module, through an upper surface thereof; and a grill having a vertically elongated cylindrical shape and formed with a plurality of through-holes, the hub body being disposed inside the grill, the grill comprising an upper end coupled to the cover and a lower end coupled to the hub base, wherein the cover comprises: a cover housing coupled to the hub body and formed with an opening in an upper surface thereof; a display disposed in the cover housing to output the interface screen; and a window disposed in the opening in the cover housing and configured to project the interface screen at an upper side of the display, wherein the window is disposed to tilt upwards from a front side to a rear side, and is disposed such that a vector, obtained by orthogonally projecting a vector which is normal to an upper surface of the window, to an upper surface on a predetermined horizontal plane, faces forwards, and wherein the grill is formed of a metal material, and a shape obtained by orthogonally projecting a cross-section of the grill which cross-section is orthogonal to the elongated cylindrical shape of the grill on the horizontal plane corresponds to a shape obtained by orthogonally projecting the window on the horizontal plane. a cover housing coupled to the hub body and formed with an opening in an upper surface thereof; a display disposed in the cover housing to output the interface screen; and a window disposed in the opening in the cover housing and configured to project the interface screen at an upper side of the display, wherein the window is disposed to tilt upwards from a front side to a rear side, and is disposed such that a vector, obtained by orthogonally projecting a vector which is normal to an upper surface of the window, to an upper surface on a predetermined horizontal plane, faces forwards, and wherein the grill is formed of a metal material, and a shape obtained by orthogonally projecting a cross-section of the grill which cross-section is orthogonal to the elongated cylindrical shape of the grill on the horizontal plane corresponds to a shape obtained by orthogonally projecting the window on the horizontal plane.