| 摘要 |
PROBLEM TO BE SOLVED: To provide a headset capable of achieving high-quality sound reproduction over a wide band while allowing sound from the outside to be sufficiently heard. SOLUTION: This headset includes: two vibrators each vibrating in response to an electric signal; two diaphragms each including the vibrator; and a holding part that, when worn on a head of a user, holds at least a part of the diaphragm at a position spaced from a side surface of the head by a predetermined distance. COPYRIGHT: (C)2011,JPO&INPIT
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