This Review Title is Waste of money and the content is: Unit is total junk.  It will randomly turn on without any notice. When changing to massage or other option it will not change it will just stay on one or skip past the other selected patients. I highly advise not purchasing as it will not last it does not work and the water pack is completely junk..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.