Good product, needs configuration diagrams
Good product concept .  I have it on my shoulder now.  Working well so far.  My only complaint is that it comes with no instructions.  It's not too difficult to figure out after looking at the photo on Amazon, but a simple insert with diagrams of how best to configure it for different areas of the body would be a great simple addition to the box.  The company doesn't have a website, but even putting the diagrams up on a website would work too.
Rating: 4 stars