"When my Orthopedic doctor first mentioned this machine, I have to tell you that I thought it was something that just couldn't work. Well, I got the machine and the shoulder wrap. I was so happy I cried. I thought I was destined to have this constant pain forever. Since I got the machine I have ordered the knee wrap, the hand wrap, and the back wrap. I plan to get the leg wrap and neck wrap next. Cold and hot works great on different areas. I just wish I could get a body wrap as I would live in it. This is truly a great machine and I have told everyone I know about it and where they can buy it on the web. Thank you so much, I can use this for my osteoarthritis pain and my tendentious as well. It doesn't cure it, but it makes it bearable. You did teach an old dog a new trick."