3.1.2 channel sound lets you experience immersive sound that fills the room Wireless subwoofer produces crystal clear bass and sub-bass tones Dual up-firing speakers sound you with sound Dolby Atmos offers an immersive sound experience Q-Symphony orchestrates your TV and soundbar in harmony Ultra slim design ensures this soundbar will fit virtually anywhere you want to put it Required accessories (sold separately) HDMI or optical digital cable, depending on how you're connecting the sound bar to the TV