| 摘要 |
A headphone 1 is comprised of a driver unit 4, a cord 3a, a housing 5, and a bushing 13. The driver unit 4 generates sound waves depends on supplied sound signals. The cord 3 is connected to the driver unit 4 to supply audio signals to the driver unit 4. The housing 5 stores the driver unit 4 and has a cord inserted hole 10 to insert the cord 3. The bushing 13 is a tube covering the exterior 3a of the cord 3 with a gap g to protect the code 3 from a wire breakage caused by bending. The bushing 13 is set to the cord inserted hole 10. A valve portion 17 is formed on the inner face 13a of the bushing 13 to contact circularized with the exterior of the cord 3.
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