| 摘要 |
PROBLEM TO BE SOLVED: To provide a hearing aid that has its sound hole prevented from being clogged with earwax and reduces the trouble to remove earwax. SOLUTION: The hearing aid includes a body 101 having a shape to be inserted into an earhole, a microphone which collects an external sound into the body 101, a hearing aiding processing unit which processes the sound collected by the microphone, and an earphone 104 which outputs a sound processed by the hearing aiding processing unit. A portion of the body 101 which comes into contact with the external acoustic meatus is formed of a shell member 102, which has the sound hole 103, passing the sound output from the earphone 104 to outside the body, at a body tip portion, and a plurality of groove portions 106 formed on a surface of the shell member 102 from the sound hole 103 toward the body tip portion. COPYRIGHT: (C)2009,JPO&INPIT
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