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D11 / FC11
Care, maintenance, environment
Care
Use a soft, dry cloth to clean the device. Do not use any solvents.
Maintenance
A lithium-ion battery has a limited working life. When the operating time of a
device with a fully-charged battery has become obviously reduced, the battery
must be exchanged.
There are no parts inside the handset, the charger and the plug-in charger that
can be serviced by the user. Only authorised personnel may open the devices
and carry out any interventions in the devices.
Environmental conditions
Your handset has a robust casing. This notwithstanding, protect your device
against damp, extreme heat (e.g. sunshine behind glass) and dirt.
Take note of the different levels of protection of the D11 and FC11 handset
types.
ATTENTION
Protect your handset against dirt that only can be removed from
the handset with great effort.
For example, fine iron filings, which are held onto the housing by the
loudspeaker magnets or paste-like substances (e. g. grease, creams)
that can collect in the loudspeaker and microphone openings.
Care, maintenance, environment
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