Siemens MUSIC Pro User Manual page 50

Some useful tips:
Never expose your hearing instruments to
extreme temperatures or high humidity.
Never let them lie in the blazing sun. Do not
wear them when taking a shower or when using
hairspray.
In short-wave therapy or if you work or are
medically treated with strong magnetic or
high-frequency fields or X-rays, under no
circumstances may you wear the instruments
during the therapy.
Make sure to switch off the instruments when
not in use. This saves the batteries.
If you don't wear your instruments for a longer
time, remove the batteries. Batteries can leak
out. Replace batteries that have leaked out
without delay.
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