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. Use the BLUETOOTH device and 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

• Use the BLUETOOTH device and switch the BLUETOOTH connection to A2DP (Advanced Audio Distribution Profile) when HFP (Hands-free Profile) or HSP (Headset Profile) is set.

• 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, use the BLUETOOTH device and make an A2DP BLUETOOTH connection.

• Sound skips frequently during playback.

• MDR-1RBT

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 of the bit rate.**

* Bit rate is a numerical value which represents data transmission volume per second. The higher the bit rate, in general, the better quality the sound will be. The headset can receive high bit rate music but sound skipping may occur depending on the usage environment.

** The above operations may not reduce the sound skip depending on the usage environment. To reset to the original setting, turn off the headset once, then turn it on again by pressing the POWER button for about 2 seconds while pressing the VOL+ button.

• MDR-1RBT MK2

Set the headset to the “Priority on stable connection” mode.

For details, refer to “Selecting the sound quality mode of music playback (MDR-1RBT MK2).”