Take your immersive listening experience to the next level by adding full-on surround sound. Just add Bose Surround Speakers 700 to your Bose soundbar and bass module to feel completely enveloped in every moment of your music, movies, and TV. They stand less than 6” high and blend nicely into your room. The difference between hearing bass and feeling thunder starts the moment you add this wireless bass module to the Bose Soundbar 900. QuietPort technology eliminates distortion and a highly advanced DSP delivers surprisingly deep and clean sound from something so small. Meet the top-of-the-line soundbar that’s here to pull you deep into the heart of all your favorite content. Bose Smart Ultra Soundbar with Dolby Atmos and Bose TrueSpace technology separates instruments, dialogue, and effects, and places them in different parts of a room for a truly immersive spatial audio experience like you’ve never heard it before. A.I. Dialogue Mode automatically balances voice and surround sound for ultra-crisp vocal clarity. Plus, two upward firing dipole speakers work with Bose technologies to make it feel like your space is filled with sound from every direction — even overhead.