USER OPERATED CONTROLS
The Volume Control (VC)
Most hearing aids have a volume-control, which enables the user to adjust the amplification of the hearing aid according to the different listening environments. Some hearing aids have no VC accessible to the user. Instead they are equipped with some sort of automatic gain control and the gain is preset by the manufacturer or the hearing healthcare professional.
The On/Off switch
The hearing aid is turned on or off by using the on/off switch. This can either be a tiny switch, mounted on the hearing aid case, or it can be integrated into the battery compartment for ease of operation.
The M-T switch
Many hearing aid models are provided with a switch, enabling the user to choose between receiving the ...
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