I asked for this for Christmas because I have fibromyalgia, and it does not work. It doesn't even get warm, never mind hot for relief. And the vibrating is only around the shoulders; it doesn't go all the way down the back at all. And it is so loud; it is not relaxing. No way I could sit and enjoy reading a book with such a loud sound in my ears, or sleep if I used it in the bed. Bad product. I am taking mine back today.
Bottom Line: No, I would not recommend this to a friend
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