| 摘要 |
PROBLEM TO BE SOLVED: To provide an audio output device capable of preventing howling.SOLUTION: The device includes: audio output sections 4, 6 to output an audio in the vicinity of at least one of ears of a user; an audio changing section 20 to change either audio volume or audio quality of the audio output from the audio output sections, based on the state of ears to which the audio output sections are made to be closer. |
