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The term "Hearing Aid" is reserved for Audiologist-prescribed devices.
This does not apply to Listen-Aid, a commercial device, therefore Listen-Aid is termed a " Hearing Amplifier"...
One size, for adults.
There are 6 levels of
volume.
2 extra ear inserts.
It is visible when worn.
Specifications:
Rigid Plastic case complete with 3 -
1.5v mini button batteries.
1 for immediate use + 2 spares.
(Extra batteries ordered are not returnable).
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