Sonos Sub Wireless SubwooferHear and feel the difference with Sub, the wireless subwoofer for deep bass. Experience lower lows and higher highs when you connect Sub to your Sonos system over WiFi. Place the award winning design upright or lay it on its side and enjoy pure bass with no vibration or rattle. No buzz, just bass Two force canceling drivers at the center of Sub eliminate vibration and rattle so you get powerful bass without any distortion. Made to be seen and heard