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Music
No sound
Check that both the headset and the BLUETOOTH device are turned on.
An A2DP BLUETOOTH connection is not made between the headset and the BLUETOOTH device. Make an A2DP BLUETOOTH connection.
Check that music is being played back by the BLUETOOTH device.
Check that the volume of the headset is not set too low.
Turn up the volume on the connected device if necessary.
Pair the headset and the BLUETOOTH device again.
Low sound level
Turn up the volume of the headset.
Turn up the volume on the connected device if necessary.
Low sound quality
Switch the BLUETOOTH connection to A2DP (Advanced Audio Distribution Profile) when HFP
If you have previously connected this BLUETOOTH device, only an HFP/HSP BLUETOOTH connection may be made when the headset is turned on. If this happens, select an A2DP BLUETOOTH connection.
Sound skips frequently during playback.
Reception condition of the headset may have become unstable due to improper matching of the bit rate setting for the music transmitted from the BLUETOOTH device and the environment in which the headset is used.* Turn off the headset once, then turn it on again by pressing the POWER button for about 2 seconds while pressing the VOL– button to lower the setting
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