I saw this product on NHK World's tech show "Great Gear" and was pleasantly surprised to see that it was available on Amazon. So, I decided to take a bit of a flyer and buy one. I am glad I did. It works and then some.For those who haven't seen this in action, it looks like a big marker, except the tip is an ultrasonic head that focuses sonic waves. The idea is that the waves are able to break up deep set stains on fabric which can then be washed out in the laundry. Just power up, press and move it on the stain- which will break up some stains right there- and then throw it in the wash. The complete package is the wand, a USB power cord which can be plugged into a US wall socket, a stand for the wand and a travel sponge in case you need to do some spot soaking outside of the home.It works the best the sooner you can get to the stain- no surprises there. I recently discovered a nasty stain that had a whole day to set. Did a quick soak with some soap and then ran the wand over the fairly large stain. Threw it in the wash and when I took it out, I had no idea where the stain had been. On stains that have been there for a while, it might take multiple efforts, but you will notice a difference after the first pass.A couple of pointers: 1) it doesn't make any noise so you might not think it is working. Put it on a wet stain and watch the bubbles appear. You'll see it in action. 2) the point of the tip can get pretty hot, so don't touch it directly after it has been on a while 3) you do have to do an initial charge and even then, once it is charged, you will need to press the power button for about 3 seconds for it to turn on. When the button glows white, it is operative.If you are a bit messy, or you have some clothes you love but don't wear because of some stains, I recommend this product. It does what it says it will.