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15
Mute
You can also use your RC4-1 to mute your hearing aid
completely.
Press the [1] key. The initial setting,
P1 V9, should now be displayed.
Then press and hold down the [1]
key while pressing the [–] key. The
number 0 is displayed next to V. To
turn up the volume again, press the
[+] key. This will reset the volume to
the initial setting (9).
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