VIZIO - SmartCast™ 3.1-Channel Soundbar System with 24.2" Wireless Subwoofer - Black

Immerse yourself in 3.1 surround sound with this powerful, versatile Vizio 40-inch SmartCast sound bar. It fits nicely beneath your large-screen television while delivering room-filling sound, and it helps to further amplify the device's distinctive audio performance. Bring videos and music to life with this Vizio 40-inch SmartCast sound bar.
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VIZIO - SmartCast™ 3.1-Channel Soundbar System with 24.2" Wireless Subwoofer - Black - Larger Front
  • VIZIO - SmartCast™ 3.1-Channel Soundbar System with 24.2" Wireless Subwoofer - Black
  • $299.99

Includes all 2 itemsOffer disclaimer


What's Included

  • 5' 3.5mm to 3.5mm Stereo Mini Jack Cable
  • 5' Digital Coaxial Cable (RCA)
  • 5' HDMI Cable
  • 5' Optical Cable (Toslink)
  • 5' RCA to 3.5mm Stereo Audio Cable
  • 5' Slim Subwoofer Power Cord
  • 8' Sound Bar Power Cord
  • LCD Display Remote
  • Wall Mounts; Quick Start Guide
  • Wireless Slim Subwoofer

Ratings & Reviews

Overall Customer Rating:
Rating 4.3 out of 5 stars.
88% of customers would recommend this product to a friend (149 out of 171)

Energy Ratings

Product Features

SmartCast™ 40" soundbar

The included wireless subwoofer together with the 3-channel sound bar deliver immersive surround sound.

101 dB sound output

For crystal-clear immersive surround sound.

New slim wireless subwoofer

To turn your mobile device into the ultimate remote and discover music across multiple apps at once.

VIZIO SmartCast™ App

Download this app to turn your smartphone or tablet into a powerful touchscreen remote. Search and browse content, control multiple SmartCast sound bars or speakers from anywhere in your home.

Google Cast™ built-in

Cast your favorite tunes from your phone to your VIZIO SmartCast™ Sound Bar. Simply tap the Cast button from 100 audio apps you already know and love to start playing on your sound bar.

Works with Google Home powered by the Google Assistant

Stream your favorite entertainment using just your voice. Turn up the volume, play your favorite show, or stop the music - all without having to raise a finger.

Connect multiple VIZIO SmartCast™ sound bars or speakers together

To cast the same music to any or every room.


Includes HDMI.

Intuitive LCD remote

Enables simple operation and adjustments from across the room.

Overall Customer Rating

88%of customers recommend this product.



Most Helpful ReviewsSee all customer reviews

        • Brand Response


          February 20, 2017

          Thank you for your feedback. Lip Sync issues can be adjusted through the TV and/or the sound bar by adjusting the Lip Sync setting. This may take some time to adjust to your preferences but should correct the issue. If you need any assistance feel free to contact our customer support team at 877-878-4946 – we’re here Monday thru Friday from 7am to 11pm and Saturday and Sunday from 8am to 6pm CST. VIZIO

            • Brand Response


              December 19, 2016

              Thanks for taking the time to fill out a review and give us some feedback. If your television has HDMI ARC port you could connect the Sound Bar to the TV with ARC. ARC uses a technology called CEC that will tell the Sound Bar to power on when the TV powers on. If you're unable to use ARC, this Sound Bar also has an Eco Mode feature witch powers off the Sound Bar after its inactive for a period of time. So if a TV has been powered off- the Sound Bar will also power off. You can disable this so that your Sound Bar will stay powered on and ready to play audio. VIZIO

              • Brand Response


                September 17, 2016

                We appreciate you taking the time to provide this feedback for the all-new VIZIO SmartCast™ SB4031-D5.
                There are many audio adjustments that can be made in the Menu, found in your VIZIO SmartCast™ app, to affect this. We recommend customizing these to find the best options for your setup.
                If you have any additional questions please feel free to contact us at 844.254.8088. Thanks! –Collin VIZIO

            Product images, including color, may differ from actual product appearance.