Love your new Bose soundbar but want to kick the performance up a notch? Add the Bose Bass Module 700its the difference between hearing bass and feeling thunder. And its the best wireless bass module weve ever designed for any of our home cinema systems. In fact, its the best performance you can get from a subwoofer of this size. It connects wirelessly to your soundbar and adds even more depth and impact to everything from explosive movie effects to house-rocking playlists.