Nokia BH-504 ユーザーズマニュアル

Charging the battery for 15 minutes provides about 4 hours of talk 
time or music playing time. Charging the battery fully may take up to 
45 minutes.

3. When the battery is fully charged, the green indicator light is 

displayed. Disconnect the charger from the headset, then from the 
wall outlet.

The fully charged battery has power for up to 9 hours of talk time, up to 
90 hours of standby time, or up to 7 hours and 30 minutes of music 
playing time.

When the battery is discharged, the headset beeps about every minute, 
and the red indicator light flashes slowly.

■ Switch the headset on or off

To switch on, press and hold the multifunction key for about 2 seconds. 
The headset beeps, and the green indicator light is briefly displayed.

When the headset tries to connect to the last used phone or music 
player, the green indicator light flashes slowly. When the headset is 
connected to a device and is ready for use, the blue indicator light 
flashes slowly. If the headset has not been paired with a device, it 
automatically enters the pairing mode (see “Pair the headset with phone 
or music player”, p. 7).

To switch off, press and hold the multifunction key for about 5 seconds. 
The headset beeps, and the red indicator light is briefly displayed. If the 
headset is not connected to a device within about 10 minutes, it 
switches off automatically.

■ Pair the headset with phone or music player

If your phone supports the A2DP Bluetooth profile and has a music 
player feature, you can use the phone to also play music with the 
headset.