Works great & helps to reduce the pain.
I ordered it for my grandma who suffers from knee pain. She lives in another state and I`ve sent with some other supplements on Christmas but she really loves this item.  The vibration and heat work great. I ordered just one at the time I should`ve bought two if I knew. I will buy one more as soon as it in stock. She is more than happy with this reduces her pain.
Rating: 5 stars