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Deep-discharged batteries cannot be charged
anymore and they have to be replaced. We
recommend recharging more frequently than at
intervals of 6 months.
Observe the storage conditions in section
"Operating, transport and storage conditions".

Ear pieces

Cleaning
Cerumen (ear wax) may accumulate on the ear pieces.
This may affect sound quality. Clean the ear pieces
daily.
For all types of ear pieces:
Clean the
X
ear piece
right after
removal with
a soft and dry
tissue.
This prevents
that cerumen
becomes dry
and hard.
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