Phonak Nathos S+ ITC, Руководство пользователя

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Fig. 7
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4. Using the hearing aid
Step 7. Selecting the hearing program in the ear
To change a hearing program (possible only in models
with an optional program button), press the program
button shown (Fig. 7).
If you press it again, you change to the next program.
A signal indicates the change.
A signal tone can only be easily heard if you have turned
on the hearing aid and you are wearing it correctly in the
ear.