I was all excited to receive this heating pad based on the good reviews. Oh boy, was I in for a big disappointment. First of all, this pad cannot be used underneath the body, which is not mentioned anywhere, as I recall. Yes, I read the manual, and found out that you have to place this pad ON TOP of the area you wish to treat, do not lay on top of it, or something terrible may happen I guess. One strike, because I like to put a heating pad under my sore back, but this is a no no. Strike two is the fact that there is no way to control the temperature; it comes with just the one setting it has and that is that. Strike three, it lacks a timer, so you cannot set it to auto shot-off. To summerize my impression of this product, it seems to be lagging still in the last century based on looks, feel and function. The only positive is the fact that the cover is made out of some kind of a felt material, which absorbs moisture from the air and then releases this moisture back out and into your body during the heating cycle. One last thing, this pad is much heavier than anything I have ever seen. Sadly, I'll have to send it back. Had I known all the little details prior to purchasing, I would have ordered something else. Lesson learned: heating pads should never be purchased online, unless you know exactly what you are in for.