You need to pair devices when powering up CK3x00 for the first time.
Subsequently, all connections between your phone and CK3x00 are
automatically established when both devices are within a few meters
range of each other.
Procedure
Select MENU, select Bluetooth Link, select SETUP / POWER ON.
Select HANDSFREE ...
Select LOOK FOR DEVICES (searching).
Select "Parrot CK v...".
Enter 1234 as PIN, press OK.
The two devices are now connected.
Forecast of utilisation made according the manufacturer phone user's guide