Nokia N8-00 - Manual (Page 15)

Attach the wrist strap
Thread the wrist strap, and tighten it.
Headset
You can connect a compatible headset or compatible headphones to your phone.
Do not connect products that create an output signal, as this may damage the device.
Do not connect any voltage source to the Nokia AV connector. If you connect an
external device or headset, other than those approved by Nokia for use with this
device, to the Nokia AV connector, pay special attention to volume levels.
Switch the phone on or off
Switch on
Press and hold the power key until the phone vibrates.
Switch off
Press and hold the power key .
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