You need to pair devices when powering up Rhythm n'Blue for the first time. Subsequently, all connections between your phone and Rhythm n'Blue are automatically established when both devices are within a few meters range of each other.
Procedure
Select SETTINGS / CONNECTION.
Select BLUETOOTH LINK / SETUP / POWER .
Select ON (then the bluetooth is activated).
Then select BACK/HANDSFREE .
Select [LOOK FOR DEVICES] (searching...).
Select "Parrot Rhythm n'Blue", and yes to accept the bonding.
Enter 1234 as PIN, press OK.
The car kit and the phone are now connected, and the synchronisation is automatically beginning.