The Sonos Sub Mini brings the deep bass performance of the Sonos Sub to smaller rooms and tighter budgets, featuring two opposing woofers in a cylindrical enclosure that cancel vibration and deliver clean, rich low-end extension to any Sonos soundbar or speaker. It pairs wirelessly via Wi-Fi and is calibrated automatically through the Sonos app's TruePlay room tuning. Compact enough for bookshelves or beside a sofa, it significantly enhances the audio experience for both music and TV content without taking up floor space. A great upgrade for Beam or Era 100 setups.