If you wear a SONNET 3 on one side and a RONDO 3 on the other, you can still stream to both using your phone, a Bluetooth connection, and the AudioStream Adapter. 1. Configure SONNET 3 with your phone via the AudioKey 3 app. 2. Do the same with your RONDO 3. 3. Both devices are now connected, and you can bilaterally stream sound!