On rare occasions, connecting to your speaker via Bluetooth fails, and you will need to reestablish pairing between the two devices.
Follow this procedure:
1. Delete existing Libratone Bluetooth pairing
In the Bluetooth menu on your smartphone, delete/forget the existing Libratone Bluetooth pairing and switch Bluetooth OFF/ON.
2. Enable Bluetooth pairing mode on your speaker
Press and hold the Nightingale until a side-by-side blinking setup sequence appears.
3. Pair your smartphone and your speaker
In the Bluetooth menu on your smartphone, locate your Libratone speaker and tap to pair.