Product highlights: powered Dolby Atmos sound bar and subwoofer compatible with optional battery-powered True X Speaker 1A wireless rear speakers for true surround sound (requires two speakers, both sold separately) Sound bar: two 1-3/4" x 2-5/8" woofers two 2" up-firing drivers for overhead effects two 3" built-in subwoofers built-in amplifiers with 180 watts total power 30 watts x 2 for front left/right woofers 30 watts x 2 for up-firing drivers 30 watts x 2 for built-in subwoofers Yamaha True Sound engineering for dynamic, accurate sound reproduction supports Dolby® Digital and Dolby Atmos height-channel speakers and virtual surround processing create a spacious, lively soundstage Clear Voice mode for clearer, louder dialogue with movies and shows Bass Extension function for broader, more powerful bass listening modes: stereo, standard, movie, and game keyhole slots for wall-mounting