Patent ID: 7120267

Claim:
A headset, comprising: a housing worn on one of wearer's auricles; a driver unit which is accommodated in said housing and outputs a sound corresponding to a provided sound signal; an arm having a predetermined length and two ends comprising a first end and a second end, the first end of the arm being accommodated in the housing and the second end being pulled out of a hole of the housing to the outside, an arm portion being exposed upon the second end being pulled out of the hole of the housing, a length of the arm portion being adjusted by pulling the second end out of the hole of the housing; and a microphone attached to said arm; wherein an arm-attaching member, to which the first end of said arm is attached inside said housing, capable of turning with respect to said housing is provided; said arm is wound along the approximately outermost peripheral part in said housing by the turning of the arm-attaching member; and said arm-attaching member is connected to said housing side through a take-up spring, and said arm is wound into the housing by the turning of said arm-attaching member with the resilient force of said take-up spring.