Check for and install any available system updates: Open the SoundTouch app and go to "Menu" > "Settings" > "Speaker Settings." If an update is available, tap "UPDATE SOFTWARE" to install it.
Your system can connect one or two bass modules. To connect two, both must be the same model and also connected wirelessly. If you have two wireless bass modules to connect, connect the first, then repeat these steps for the second.
Connect the bass module to an AC power socket
Press and hold the number 7 until the connectivity light on the front of the soundbar blinks white, then release the button. Once connected, the light glows solid white and the bass module emits a tone.
Tip: If the bass module does not connect, unplug the soundbar and bass module for 30 seconds, then try again.