A group exists until the link is manually dissolved.
Whenever you play a speaker that is part of a group, all of the speakers, regardless of their connection method (AirPlay, DLNA, Bluetooth, wired etc.), will play simultaneously.
If you want to play a single speaker in a group, you can remove that speaker from the group in one of two ways:
1. Use the Touch interface
Press and hold the SoundSpace Link icon for 3 seconds.
2. Use the Libratone App
1. Open the Libratone App
2. Select the speaker group marked LINK
3. Tap GROUP SETTINGS
4. Tap UNLINK to the speaker you want to remove from the link.