The Sonos Arc Ultra is a 9.1.4-channel Dolby Atmos smart sound bar with 14 built-in drivers for immersive surround sound with overhead effects, in a Black finish. This unit is Geek Squad Open Box. Built-in Alexa and Speech Enhancement add voice control and clearer dialogue Apple AirPlay 2 and Wi-Fi support wireless streaming and multi-room audio This description was generated by AI and reviewed for accuracy.