Distorted or intermittent sound (sometimes with noise)

• Charge the battery of the headphones.
  If the power indicator is still off after you charge the battery, take the headphones to your nearest Sony dealer.

• Make sure there are no other wireless devices using the 2.4 GHz or 5 GHz wireless frequency band, or there are no electromagnetic waves being generated from a nearby microwave oven.

• Change the position of the processor.

• When “ANALOG” is selected with the INPUT button, set the ATT (LINE IN) switch on the processor to “–8dB.”

• If you connect the headphone jack of the AV device to either of the LINE IN (L/R) jacks of the processor, lower the volume level on the connected AV device.

• Try other positions of the WIRELESS BAND switch.
  When the WIRELESS BAND switch is set to “AUTO,” and the channel changes automatically, sound may cut out momentarily. This is not a malfunction.

Low sound