Bold Bass The wireless subwoofer for deep bass.Hear and feel the difference when you connect Sub to your Sonos system. FEATURES Two Class-D digital amplifiers perfectly tuned to the acoustic architecture. Two force-canceling drivers face inward for powerful bass without any cabinet buzz or rattle. Dual acoustic ports precisely tuned to enhance performance. Frequency response as low as 25 Hz. Audio settings automatically equalize to balance Sub and the paired Sonos speaker(s) or component. Trueplay™ software dynamically tunes to the unique acoustics of the room. iOS device required. Adjustable EQ settings in the app. TECHNICAL SPECS Dimensions - H x W x D:  15.3 x 15.8 x 6.2 in. Weight:  36.3 lbs. Power supply:  Auto-switching 100-240 V, 50-60 Hz AC universal input. Ethernet Port:  1 10/100 Mbps ethernet port. Wire directly to your router if WiFi is unreliable. WiFi:  Connects to your home WiFi network with any 802.11b/g, 2.4 GHz broadcast-capable router. Sonos S2:  Download the latest generation of the app to set up and control. CPU:  Quad Core 1.5 GHz Memory:  2GB SDRAM 4GB NV IN THE BOX Sub, Power Cable, QuickStart Guide, Legal & Warranty Information