Patent ID: 8532324

Claim:
A headphone comprising: a housing that includes a speaker unit, and a protruding portion that is provided so as to protrude at a specified position on one surface of the housing and to output a playback sound from the speaker unit, the protruding portion protruding at an angle from the one surface, the protruding portion being formed of an elastic material, wherein the headphone is adapted for wearing on a head so that: the one surface of the housing comes into contact with an outward facing surface of an auricle surrounding a cavity of a concha, the protruding portion extends into the cavity of the concha without entering an auditory canal, and the protruding portion protrudes from a section of the housing that is disposed closer to a back of the head than another section of the housing, and closer to a bottom of the head than the other section of the housing, when viewed from a direction along which the protruding portion extends into the cavity of the concha.