We bought this Vizio sound bar a few months ago and our cats would turn the speakers and it was rather annoying to look at, I initially made some brackets to help that slipped over the original mounts but the wall they mount to is shared with our bedroom and if someone was watching tv they transferred a lot of sound through the wall. I made these to print in TPU for sound dampening but any material should work fine. Added a small shelf to keep them from rotating as well as two screw mounts, using your standard wood/drywall screw, you might need wall anchors depending on your mounting surface.
Printed at 15% infill, .2 resolution, and 2 wall layers, tree supports are needed if you print on that mounting surface.
Step and fusion files are attached if you need to make adjustments to them.
Link to walmart for reference, they are available else where
https://www.walmart.com/ip/VIZIO-V-Series-5-1-Home-Theater-Sound-Bar-with-DTS-Virtual-X-Bluetooth-HDMI-ARC-V51x-J6/702858212?fulfillmentIntent=In-store&filters=%5B%7B%22intent%22%3A%22fulfillmentIntent%22%2C%22values%22%3A%5B%22In-store%22%5D%7D%5D&athbdg=L1103&from=/search
The author marked this model as their own original creation.