Patent ID: 8411893

Claim:
A headphone, comprising: a housing that contains a driver unit; a sound guiding tube that protrudes from the housing in a predetermined direction, and guides a sound generated from the driver unit to an external auditory canal; and a hanger that rotatably supports the housing, via a supporting shaft provided in approximately the same direction as a depth direction of the external auditory canal and in an inclined direction with respect to a protruding direction of the sound guiding tube, the hanger formed into an approximately T-shape, wherein the hanger further includes a protrusion for preventing a combination error of the hanger and the housing, and the housing further includes an engagement groove, the engagement groove and the protrusion being engaged when the combination of the hanger and the housing is correct, wherein a rotation angle of the housing with respect to the hanger is regulated via ribs, provided to the housing and the hanger.