Add more bass to your compatible soundbar or system with the Bose black Bose Bass Module 700. It connects to your Bose Smart Soundbar 300, TV Speaker, Smart Soundbar 700, Soundbar 500, SoundTouch 300 soundbar, Lifestyle 600 system, or Lifestyle 650 system wirelessly or via an optional 3.5mm cable and features a glass-top finish for an elegant aesthetic.