Patent ID: 8194910

Claim:
A headphone set comprising at least one speaker section, the speaker section including: a speaker unit; a housing to contain the speaker unit, the housing having a sound emitting surface through which sounds given off by the speaker unit are emitted out; and a circular member provided on an outer surface of the housing so that the sound emitting surface is surrounded by the circular member, the circular member being made of a material that is more flexible than a material of which the housing is made, wherein the circular member includes: a protruding member that sticks out outwardly in a first radial direction of the circular member, the protruding member having a first top section, an opposing first bottom section, and an inner space interposed between the first top and bottom sections, the first top section being positioned farther than the first bottom section from the sound emitting surface; and an arc-like member that sticks out outwardly in a second radial direction of the circular member, the first and second radial directions being opposite to each other, a degree of sticking out for the arc-like member being smaller than a degree of sticking out for the protruding member, the arc-like member having a second top section and an opposing second bottom section in which the second top section is positioned farther than the second bottom section from the sound emitting surface, wherein the first top section of the protruding member is positioned farther than the second top section of the arc-like member from the sound emitting surface, and wherein the circular member has a first opening with a first center axis and an opposing second opening with a second center axis and positioned closer than the first opening to the sound emitting surface, the second center axis not coinciding with the first center axis, wherein the protruding and arc-like members are provided so that the first and second openings are interposed between the protruding and arc-like members.