Sony HT-NT3 Operating Instructions Manual page 46

 Make sure [Bluetooth Audio] input
is selected.
 Adjust the volume of the
BLUETOOTH device first, if the
volume level is still too low, adjust
the volume level on the Bar
Speaker.
The sound skips or fluctuates, or the
connection is lost.
 The Bar Speaker and the
BLUETOOTH device are too far
apart.
 If there are obstacles between the
Bar Speaker and your BLUETOOTH
device, remove or avoid the
obstacles.
 If there is device that generates
electromagnetic radiation, such as a
wireless LAN, other BLUETOOTH
device, or a microwave oven
nearby, move them away.
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