The other party’s voice cannot be heard / Phone call cannot be made.
- Check that FL-N01 is turned on.
- Check that FL-N01 and the smartphone are connected via Bluetooth.
If they are not connected via Bluetooth, perform initial setup.
- Check whether [Use call function] is set to on on the "Future Lab Program N" app.
- Turn up the volume of FL-N01 and the smartphone.
- Check that the setting of the sound output device on your smartphone is set to FL-N01.