Bose Smart Soundbar 900 Dolby Atmos with Alexa Built-in, Bluetooth connectivity  Sound is powerful. That’s why the Bose Smart Soundbar 900 with Dolby Atmos brings the immersive experience of a movie theater into your home. Custom-engineered upfiring dipole speakers working with Bose technologies make the room seem filled with sound from every direction. Proprietary Bose TrueSpace spatial processing analyzes signals like stereo or 5.1 and then upmixes them, creating a 7-channel audio experience with height in the soundscape. In other words: Enveloping sound with convincing realism, all from a single wireless Bluetooth soundbar.