Sony WLA-NWB1 - Manual (Page 9)

WLA-NWB1 [GB] 2-895-766-12(1) WLA-NWB1 [GB] 2-895-766-12(1)
 GB
5
Press and hold the power button of this unit for more than about 7
seconds to enter “Pairing in process.”
After about 2 seconds, the indicator will flash twice but keep
pressing the power button.
When the indicator of this unit flashes quickly, stop pressing it.
This unit enters “Pairing in process.”
This unit’s indicator status will vary as follows, and pairing is
established with the Bluetooth receiving device.
Indicator flashes quickly: Pairing in process

Indicator flashes when responding to the Bluetooth receiving device.
(Paring successful)

Indicator flashes (at about 5-second intervals): Connectable
Notes
 “Pairing in process” of this unit is released after about 5 minutes. If pairing is
not established within about 5 minutes, repeat the above procedure from step .
 To enter “Pairing in process,” you need to turn off the power of this unit first.
When not completed paring
Repeat the procedure from step .
To quit “Pairing in process”
Press and hold the power button of this unit for about 2 seconds to
turn off this unit.
 Tip
When paring this unit with a number of Bluetooth receiving devices, repeat steps 
and  for each device individually.
Note
Depending on the Bluetooth receiving device, the unit may not enter “Connectable”
automatically. In this case, see the operating instructions supplied with the device.