| 摘要 |
The cerumen protection device (27) is inserted completely or at least partly in the sound channel (25) of the hearing aid (21), which has at least one microphone, an amplifier unit and an earphone (24). One surface of the cerumen protection device has several protrusions (30A-30F) for attachment in the sound channel that contact a smooth surface of the sound channel and produces an adhesive effect as a result of the friction.
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