Nokia 2690 - Manual (Page 12)

Headset
Warning:
Continuous exposure to high volume may damage your
hearing. Listen to music at a moderate level, and do not
hold the device near your ear when the loudspeaker is in
use.
Warning:
When you use the headset, your ability to hear outside
sounds may be affected. Do not use the headset where it
can endanger your safety.
When connecting any external device or any headset, other
than those approved by Nokia for use with this device, to
the Nokia AV Connector, pay special attention to volume
levels.
Do not connect products that create an output signal as
this may cause damage to the device. Do not connect any
voltage source to the Nokia AV Connector.
Magnets and magnetic fields
Keep your device away from magnets or magnetic fields.
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