Who says you need a big box for big bass? The Bose Bass Module 500 is a small . compact cube that amplifies your music . movies . and more without compromising valuable room space. Due to its size . it can be inconspicuously placed . so you can keep the focus on the dramatic sound. This is a bass you don’t just hear ?? you feel it. Adding this bass module to your Bose Soundbar gives you a room-rocking . theater-like experience. And the setup? Simple. Just wirelessly connect to the soundbar . and you’ll have premium bass almost instantly. The Bose Bass Module 500 is compatible with the Bose Smart Soundbar 300 . Smart Soundbar 500 . Smart Soundbar 700 and Bose Smart Soundbar 900 . as well as the Bose TV speaker and SoundTouch 300 soundbar.