About this item: 
The wireless subwoofer for deep bass. 
Hear and feel the difference when you wirelessly connect Sub to your Sonos system. 
Stand it upright, place it on its side, or tuck it under the couch. 
Experience pure bass with zero buzz, rattle, or vibration. 
Pair with Sonos Beam, Playbar, or Playbase for incredible home theater and add rear surrounds for immersive sound.