Headset - Nokia 2730 classic User Manual

Your device may have internal and external antennas.
Avoid touching the antenna area unnecessarily while the
antenna is transmitting or receiving. Contact with
antennas affects the communication quality and may
cause a higher power level during operation and may
reduce the battery life.
The figure shows the antenna area marked in grey.

Headset

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.
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