| 摘要 |
PROBLEM TO BE SOLVED: To improve user friendliness regarding a hearing aid and a fuel cell which is a power source of the hearing aid.SOLUTION: A hearing aid and a fuel cell for operating the hearing aid are provided, and the fuel cell performs power storage and power supply utilizing nano bubble water. The hearing aid and the fuel cell are immersed in nano bubble water, dirt such as sweat or earwax deposited to the hearing aid is removed and sterilization, cleaning, adjustment and charging are simultaneously performed. Thus, the hearing aid is provided with the fuel cell as a power source in which time and efforts for cleaning the hearing aid and exchanging the cell are eliminated and user friendliness is improved. |
