Patent ID: 8774420

Claim:
A headphone set comprising: a support band; and a pair of speaker assemblies supported on opposite ends of the support band, each of the speaker assemblies comprising: a first rigid portion; an earphone speaker mounted on the first rigid portion for reproducing sound to be directed toward one of a wearer's ears; a second rigid portion, the first and second rigid portions presenting a space therebetween; a broadcast speaker mounted on the second rigid portion for reproducing sound to be broadcast in the vicinity of the headphone set; and an expandable speaker enclosure formed of a continuous piece of relatively flexible material and connected to the first rigid portion at a first end and connected to the second rigid portion at a second end, the enclosure, first section, and second section cooperatively at least partially enclosing the space, the speaker enclosure being shiftable between a collapsed configuration in which the expandable speaker enclosure is compressed and an expanded configuration in which the expandable speaker enclosure is stretched so as to increase an area of the space and to increase a distance between the first rigid portion and the second rigid portion, and hence the earphone speaker and the broadcast speaker, when the enclosure is in the expanded configuration.