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Use a damp cloth to clean the sound
tube and dome on the outside
and use the black cleaning
rod to "push" any debris
out of the sound tube.
The cleaning rod should
be inserted where the sound
tube attaches to the instrument and pushed all the way
through the sound tube and out through the dome. It is
not recom mended to submerge or rinse the sound tube
and dome with water, as there is a risk that a water drop
may become lodged in the sound tube. If this should occur,
it will prevent sound coming through the sound tube, and
may be harmful for the instrument's electronics.
The sound tube and dome should be changed every third
month or sooner if the sound tube becomes stiff or brittle.
We recommend that you have your hearing care professio-
nal change the dome for you. If your hearing care professio-
nal instructs you to change the domes yourself, make sure
that they are securely fastened to the sound tube before
inserting them in your ear.
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