Nokia BH-504 ユーザーズマニュアル

■ Place the headset over the head

To use the headset, unfold it and place it over your head so that the 
speaker pads rest comfortably on your ears. 

Place the pad indicated with L on the left ear and the pad with R on the 
right ear. Adjust the headband length for the best fit.

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. 

■ Adjust the volume

To adjust the headset volume, press the volume up or down key during a 
call or while listening to music. To adjust the volume quickly, press and 
hold either key.

■ Calls

To make a call, use your mobile phone in the normal way when the 
headset is connected to it.

To redial the number you last called (if your phone supports this feature 
with the headset), when no call is in progress, press the multifunction 
key twice.

To activate voice dialling (if your phone supports this feature with the 
headset), when no call is in progress, press and hold the multifunction 
key for about 2 seconds until the phone starts voice dialling, and 
proceed as described in the phone user guide.

To answer or end a call, press the multifunction key, or use the phone 
keys. To reject a call, press the multifunction key twice quickly.

To mute or unmute the microphone during a call, press the play/pause 
key.

To switch a call between the headset and the connected phone, press 
and hold the multifunction key for about 2 seconds.