Sony VPCEG24FX Manual

A passkey is a secret number that is entered by a user to use for the authentication
process to allow two BLUETOOTH devices to communicate with each other. Enter the
same alphanumeric string (case-sensitive) for both devices to allow them to
communicate with each other. You can change the passkey every time you perform
authentication, providing you enter the same passkey for both devices during the
authentication process. For details on the passkey of a BLUETOOTH device, refer to the
manual that came with the device. If no BLUETOOTH passkey is entered for a certain
time, the connection process will be terminated for security. In this case, try again.

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