Sony Walkman WLA-NWB1K Operating Instructions Manual page 19

Notes
 Depending on the Bluetooth receiving device, the transmitter may not enter
"Connectable" automatically. In this case, see the operating instructions supplied
with the device.
 For using the Bluetooth function, it is required that the Bluetooth device on the
other side is corresponding with the same profile as the transmitter. However,
even if it is corresponding with the same profile, functions may differ depending
on the specification of the Bluetooth device.
Remote control for the Bluetooth receiving device by the
Walkman.
You can control the Bluetooth receiving device using the control
button of the Walkman.
Remote control (Vol +/–, etc.)
Notes
 When operating the Walkman as the Bluetooth receiving devices remote
control, point the transmitter toward the Bluetooth receiving device.
 You may not be able to change the volume by the remote control from the
Walkman depending on your Bluetooth receiving device.
Speaker with AVRCP
Point the transmitter toward
the Bluetooth receiving device.
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