Some hearing aids adjust their own volume automatically depending on how loud sounds are. All volume controls need to be pushed up to make the hearing aid louder and down to make it quieter. Usually this is a wheel, but it can be a little lever. If you have a switch marked O-T-M, ‘O’ stands for off. On most models you use the battery compartment to turn the hearing aid off. Your hearing aid needs to be switched off when you are not using it. ![]() However, most hearing aids have some common features. Hearing aid controls vary a great deal and you should refer to the instructions that came with your model. Bromley Area Hearing Aid Aftercare Clinics.How Do I Get An NHS Hearing Aid From Hearbase?. ![]() ![]()
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