Dual custom woofers generate a deep, dynamic low end that immerses you in every song, movie, or game Trueplay tuning ensures that bass is optimized for your room's acoustics based on placement (iOS device required) Advanced processing improves acoustics to reproduce the deep bass tones of a larger subwoofer Woofer cabinet is acoustically sealed and woofers face inward to minimize distortion, buzzing, and rattling through force-canceling Plug into power and wirelessly connect to your soundbar or speaker through the Sonos app for easy set up Pairs with the Sonos One, One SL, Beam, and Ray for richer sound, depth, and nuance in every note Unique cylindrical shape is designed to be sleek and modern to easily fit into your home's decor