Hi, I have owned several of these belts. This by far is the best made one I have ever purchased, it works great, and hopefully it will last longer than the other ones. I have Back and Knee and Shoulder problems and this belt gives me relief in all 3 areas.If you have tried everything else and you are still trying to find pain relief, check this belt out.
The belt is great however you will have to buy the battery pack separately in order to wear it without it needing to be plugged in. That is very inconvenient and I would have purchased another product had I realized that prior to.