Louder. Powerful TV Sound. The VIZIO SB2021n sound bar delivers amazing audio quality and power bass, bringing entertainment to life in any room of your house. Multi-Dimensional Sound. Built-in DTS Virtual:X technology provides a multi-dimensional sound experience that gives a virtual height and surround element, to dramatically fill the room with amazing sound. Hearing is Believing With its compact size and wireless subwoofer, the SB2021 still packs a serious audio punch, and fits nicely in any room of the house. Dynamic Audio Range Dual full-range drivers provide the power to achieve both high and low range frequencies. Bring on the Bass The compact wireless subwoofer adds a deep, balanced sound that delivers powerful bass to your favorite content. Stream from your device with Apple AirPlay 2 and Chromecast built-in. Stream movies, TV shows, music and more or mirror your screen for presentations and video chats directly on your VIZIO SmartCast TV.Free & unlimited TV with WatchFree. Over 100 free live and original channels, including TV shows, movies, news, sports, lifestyle and trending digital series. Use your voice to control your TV. From playing your favorite show, to turning your TV on and off - VIZIO Smart TVs let you take control with simple voice commands.