Sony PCGA-BA1/A Read This First Manual page 9

When using BlueSpace NE software
Turn the computer on and insert the Bluetooth USB Adapter
into the USB port.
Double-click in the taskbar to launch BlueSpace NE.
Perform a device discovery to set up a connection with the
other Bluetooth device.
Perform a service search for the target Bluetooth device, to
check which services are available.
If required, enter the passkey information for verification.
Select the required service.
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