Introducing the VIZIO SmartCast™ 44” 5.1 Sound Bar System. The included wireless subwoofer and rear satellite speakers deliver fully immersive 5.1 true surround sound at levels up to 103 dB1. Download the VIZIO SmartCast™ app to turn your mobile device into the ultimate remote and discover music across multiple apps at once. With Google Cast™ built-in, you can cast your favorite tunes from 100+ audio apps you already know and love to your sound bar. Connect multiple VIZIO SmartCast™ sound bars or speakers together to cast the same or different music to any or every room.