Nokia Lumia 800 - Manual (Page 10)

Lock keys and screen
Want to avoid accidentally making a call when your phone is in your pocket or bag?
To lock the keys and screen of your phone, press the power key.
Unlock the keys and screen
Press the power key, and drag the lock screen up.
Set the keys and screen to lock automatically
Tap Settings > lock+wallpaper > Screen times out after, and select the length of time after which
the keys and screen are locked automatically.
Connect the headset
Enjoy your favorite music, or free your hands for other things when in a call.
Connect the headset 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 audio connector. If you connect an external device or headset, other than
those approved by Nokia for use with this device, to the audio connector, pay special attention to
volume levels.
Change the volume
Trouble hearing your phone ringing in noisy environments, or calls too loud? You can change the
volume to your liking.
Use the volume keys.
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