Review on RCA 2-In 4-Out Stereo Audio Switcher Plug & Play Compatible With TV, Blu -Ray Player, DVD Player, CD, Amplifier And Speaker by Kyle Smernes

I was skeptical about the build quality of this particular unit before purchasing. However, the device works well for its intended use, and it's a solidly constructed box. This is not a cheap item. One area that needs improvement is on the markings 1 through 6 on the right switch. They don't correlate with the stops of the switch. However, since this is the only box of this nature that exists, I believe function is more important than form. My only contention is that I can't contact the company that made the box. I have technical questions that will remain unanswered because "Dingsun" doesn't appear to be an entity I can contact directly.