| 摘要 |
PROBLEM TO BE SOLVED: To provide an entertaining bone conduction device by which a user can easily enjoy various sounds without being limited to only a specific sound signal. SOLUTION: The device has a jack connected to a sound signal output device 9, and when a sound signal from the sound signal output device 9 is received via the jack 7, a speaker produces a vibration in response to the received sound signal and a receptor and a holder are in contact with the speaker to deliver the vibration.
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