I can't establish a Bluetooth connection. Why not?

The problem may be one of the following:

1. The Bluetooth function on the Bluetooth device is not turned on.
-> Turn on the Bluetooth function on the device.

2. The unit and the Bluetooth device are unpaired.
-> You need to pair the unit and Bluetooth device.
　 Press and hold the BLUETOOTH button for 2 seconds or longer to enter the pairing mode. At this time, the LED repeats blinking twice.
In this condition, perform pairing on the Bluetooth device.
For details, see the Instruction Manual > [Pairing with a Bluetooth device].

You can read the Instruction Manual [here].

3. The unit is connected to the last connected device.
-> If you press the BLUETOOTH button, the unit is automatically connected to the last connected device.
If you use other Bluetooth devices, you'll need to pair them anew.

4. The surrounding environment affects the connection.
-> Check that there are no devices (microwave ovens, wireless devices, etc.) that generate electromagnetic waves in 2.4 GHz band or an obstacle that blocks radio waves.
Move this unit closer to the Bluetooth device within 10 m.