300W power capability delivers loud, dynamic sound with deep, powerful bass 2.1 channel system provides clear stereo sound with a dedicated subwoofer Dolby Audio and DTS Virtual:X deliver spacious 3D surround sound for enhanced immersion Voice Enhance Mode amplifies speech and adjusts EQ settings to make dialogue clear and easy to hear Bass Boost mode enhances low-end frequencies to deliver deep, powerful sound Required accessories (sold separately) HDMI or optical digital cable, depending on how you're connecting the sound bar to the TV