You can pair your Libratone Bluetooth speaker with up to 8 Bluetooth devices. 

Note: Your Libratone speaker can only hold 1 Bluetooth connection at a time. An existing user must Bluetooth disconnect from the speaker - or disable Bluetooth - before a new user can Bluetooth connect to the speaker and play music.

Example:

User A and user B are using an smartphone which is Bluetooth paired with a Libratone speaker.

User A is currently connected and playing music to the Libratone speaker. User B would like to use the speaker. To allow user B to connect and play, user A must first disconnect from the speaker.

To disconnect from the speaker, user A must open the Bluetooth menu on his smartphone and either disconnect from the Libratone speaker or simply disable Bluetooth.

Read about Bluetooth pairing here.