This Denon sound-bar features two 2" x 5" mid/woofers and two 1/2" tweeters for clear, vivid sonic output. The wireless sub-woofers two 5-1/4" drivers deliver powerful bass, and Bluetooth technology with aptX support enables easy audio streaming. The 175 W power handling provides quality sound for the favorite movies, shows, games and music. The two 2" x 5" mid/woofers offer clear, robust audio. The two 1/2" tweeters deliver brilliant high-frequency output. It has Dolby Digital and DTS surround sound decoders. The 3 listening modes accommodate a variety of audio needs. The NightMode helps minimize volume fluctuations to allow late-night use without disturbing others.