| 摘要 |
Miniaturized hearing aid intended for a deep insertion into the auditory meatus of people who suffer from hearing troubles, or "peritympanum" hearing aid comprising a hollow body, a closure plate therefore provided with a cavity for housing the battery and with a small closing cover for said cavity operating as a movable battery holder shifting between a closed position supplying the contacts and an open position cutting the power supply of the battery, wherein the necessary thong for removing the hearing aids from the auditory meatus controls the movement of the battery holder from the closed position to the open position. |
