Walmart offers the Vizio 38" 5.1-Channel Sound Bar with Wireless Subwoofer and Rear Satellite Speakers, model no. S3851x-C4, for $188 with free shipping. That's the lowest total price we could find for a comparable Vizio system by $30. It features a 38" sound bar with three 3" speakers, wireless 6" subwoofer, two wireless satellite speakers, 50Hz to 20kHz frequency response, and support for Dolby Digital and DTS Digital Surround sound.