Instruction: Answer the given question using the supporting document.

Input:
Question: How do I know which products this can work for?  I've got a roku, a vizio sound bar speaker set up, and a samsung tv.
Document: We had some trouble setting this up. We bought it for a Vizio speaker, Roku, and Samsung TV. It didn't come with any directions, but we were able to find some online. The programming codes  did not work for us (except for the speakers), and apparently the remote was modified to only work with Vizio TVs.
This Vizio remote controls my TV, Blue Play player, Cable DVR and Vizio Sound bar. It was very easy to set up and is easy to operate. The only complaint I had was the batteries as they had to be replaced within a week of purchase. The remote however, is excellent.
I tried several &#34;Universal remote controls&#34; but this is the only one that worked correctly with my Vizio sound bar. I also use it rot my Vizio TV, Samsung Blu-Ray and Sony DVD player as well as supporting direct access to all the possible TV inputs.
This remote is a welcome relief and replaces at least 5 remotes in my bedroom.I have  Vizio TV, Vizio sound bar, an Amp/receiver, a Roku box and DVDR. I was constantly juggling the remotes and losing them among the pillows. This one took care of the problem.
Simple, you can override just a few keys in an existing set up. For example, my window fan on/of is just mapped into the special keys meant for cable box, which I was not using anyway.The remote I especially hated was Vizio sound bar remote, which was the size of a nose hair trimmer with bubble keys and haphazard reception. It was such a relief not to have to use that again, and the reception using this remote is flawless.
I have a Vizio 42" HDTV so I ordered this remote to replace the skimpy remote that comes with the Vizio Sound Bar. Once you have the codes it is very easy to work the Vizio Sound Bar. The Vizio Code for a "universal remote" is 31517. If  you have the "Vizio Universal Remote" like I do then you will love this feature.
It works as advertised. It uses AA batteries instead of AAA, which is a real plus.The main drawback is that it doesn't work well with the Vizio sound bar. I had to use the "Learning Function" to allow it to control the sound bar. It was able to control the Vizio TV and Vizio blu-ray player without using the learning function.
This remote is great for Vizio products. We have a Vizio TV and Bluray, plus a cable box. It worked out of the box for all three. I was shocked that I didn't need to program it! I had other remotes that I could never get to work with my tv (the dog chewed up the original so I couldn't teach other remotes through learning..) but this one seems to have all the functions available just as is. :)
I had several universal remote controls before this one and I never was so happy like I am now. At the beginning I had some trouble programming my Samsung tv and I though..."maybe I should return it because my tv is not Vizio".
The LED flashes twice.3.Press the device button that you want to use to control the Audio once. The LED flashes twice. Device volume will now be controlled using VOL+/VOL-while controlling other devices.Vizio TV Remote  Vizio Sound BarPower  PowerImput  ImputVolume Up  Volume UpVolume Dwn  Volume DwnMute  MuteMenu  SRS TruSurroundINFO  SRS TruVolumeNow I need how someone to give me the codes for Samsung Wireless BluRay player.
Answer: The remote can learn the functions of any remote. I have a Vizio sound bar and a Roku player and they work with this remote. This remote is about a thousand times better than the little remote for the sound bar.