The wireless subwoofer for Deep bass. Enhance your listening experience when you connect Sub to any Sonos system. Add more dimension to home theater when you pair Sub with beam, play bar, or play base plus a pair of Sonos speakers for surround sound. Works wherever you place it. Stand Sub upright or lay it on its side. You can even tuck it under the couch. Experience pure bass with zero buzz, rattle, or vibration.