DOLBY DIGITAL 5.1 DTS VIRTUAL:X: Multi directional sound draws you into the action with Dolby Digital 5.1 capable and DTS Virtual X.Waterproof : No BASS BOOST: Boost the bass with a touch of a button. BUILT IN CENTER SPEAKER: The built in center speaker delivers enhanced dialogue so you won't miss a word. SUBWOOFER INCLUDED: Experience the intensity of action movies with the powerful bass coming from the included subwoofer. ADAPTIVE SOUND LITE: Enjoy optimized audio with enhanced voice clarity on all your favorite video content.