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
From your phone, press MENU, and select EXTERNAL CONNECTION.
Select BLUETOOTH.
The DISCOVERABLE MODE have to be switch OFF.
Then press the button with the 3 blue points (above the blue central button), and press SEARCH (waiting...).
Select "Parrot Rhythm n'Blue", enter 1234 as Bluetooth PIN code, press OK.
Then turn ON the DISCOVERABLE MODE.
Then a "B" (as the Bluetooth logo) is displayed, and flash on and off nonthe top of the phone screen when the connection is active. The same logo should appear on the screen of the Rhythm n'Blue.
Note: When the phone search for Bluetooth devices, the discoverable mode must be ON. Turn it off to do the pairing.
Press green the Rhythm n'Blue grenn button to establish the connexion each time the engine is turning ON.