Beware:  90 days warranty!!!!
This is my third infra red foot massager, so I can compare.  This one is more compact and lighter than others I had, but also not as powerful.  Both of my previous massagers broke, one within a year while on warranty, was repaired, and worked for another year; the other worked longer, but eventually broke too.  Knowing that they brake often, good warranty is especially important.  When this new unit arrived last week, it came without any documentations or instruction for use. I contacted the seller and was furnished it in PDF format.  What I read there made me question if I made the right decision buying it.... the warranty is only 90 days, not a year as my previous units!  So the jury is still out if it lasts longer than 90 days.  I have it a three stars for now.  If it breaks, I will update my review.
Rating: 3 stars