Fits a baby or maybe a small child.
Admittedly, I have a large head; but even so, this is a tiny device -- at least if you consider the two "front" pads that are (apparently) supposed to go somewhere around your temples.  Since those pads are not adjustable (you can't spread them apart), the unit won't fit most human beings.  It fits my cat, but not me.  Also, there are no photos, diagrams or instructions telling you how to position or use the unit.  None on the Amazon page where it is sold, none on or in the box that it comes in.  There is a photo on the box, but that photo is for a differently-designed device.  If you can somehow get this to fit your head, it will give you a "massage" by way of a small vibrator built into the unit.  In my case, I had to cut off the two front pads (they are two inches apart at their narrowest -- and my forehead is certainly wider than 2 inches; but they do fit on my nose).  After doing that I could get a reasonable "massage," but I now have to hold the unit on my head with my hand.  With just one design change this could be a good unit.
Rating: 2 stars