This Sonos bundle pairs a Beam (2nd Gen) sound bar with a Sub Mini wireless subwoofer and two Era 100 multi-room speakers, all finished in black. The Beam supports Dolby Atmos with Amazon Alexa and Google Assistant built in, and Trueplay tunes the Sub Mini's bass to the room. Beam (2nd Gen) sound bar, Sub Mini wireless subwoofer, and two Era 100 speakers Trueplay tunes the Sub Mini's dual force-cancelling woofers to the room's acoustics This description was generated by AI and reviewed for accuracy.