To configure your two Swell speakers as a stereo system, please make sure that:

1. Both speakers are not connected to your device (delete them from the know-device list if not).
2. Turn on the first Swell speaker and connect it to your device.
3. Turn on the second Swell speaker.
4. Press simultaneously the “Bluetooth” + “Volume-” buttons on the first Swell speaker.
5. Press simultaneously the “Bluetooth” + “Volume+” buttons on the second Swell speaker.
6. You should hear a vocal confirmation message from both speakers 

If too much Bluetooth devices are being used at the same time, it may prevent the connection between the Swell speakers.