Works with AMBEO Soundbars, 8" Long Throw Cellulose Cone Woofer, 350W of Power & Class-D Amp, Closed Enclosure for Low 27 Hz Bass, Wireless Connection to AMBEO Soundbars, Wirelessly Daisy Chain Up to 4 Subs, Far Field Mic for Auto Room Calibration, 3D Sound Support, Remotely Manage with Smart Control App. Action sci-fi and adventure movies come to life when you add an AMBEO Sub 8 350W Wireless Subwoofer from Sennheiser to your existing AMBEO soundbar. It wirelessly connects to your soundbar and uses the same AMBEO virtualization and automatic room calibration technology to fill your space with chest-thumping bass. It delivers this through an 8 long throw cellulose cone woofer that provides up to 350W of power. It works with the subwoofer's closed enclosure that helps to bring the bass down to a low 27 Hz.