Sony PCGA-BA1 Series Operating Instructions Manual page 18

If the "A Bluetooth device requires authentication" balloon
message appears in the notification area
The target Bluetooth technology enabled device is requesting connection
authentication. In this case, mutual authentication is required to enable
Bluetooth communications with this device.
To authenticate, click
Connection Wizard" window appears, follow the on-screen instructions to
exchange passkeys.
To skip authentication, click
"Bluetooth Connection Wizard" window.
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in the notification area. When the "Bluetooth
in the balloon or "Cancel" in the