The Vizio SB3651-E6 Sound Bar 5.1 Smartcast Subwoofer in Silver is a high-quality audio accessory designed for Vizio TVs. This rectangular subwoofer features a 5.1 channel system configuration, Bluetooth connectivity, Google Assistant smart home compatibility, and various audio inputs including Digital Coaxial RCA, USB, Digital Optical TOSLINK, and HDMI. With a sleek silver design and a powerful RMS power output of 40W, this Vizio subwoofer is perfect for enhancing your home audio experience with immersive surround sound and smart features.