It does not work as advertised. And when it did work, briefly, you only felt the electrical stimulation in one foot. Very bad product.
Tip for consumers: The company has many levels to go thru and the contact info they provide is bogus -- it goes no where and no one answers the phone. It's a scam. The various names they use is: 1) Straight-commerce.com
2) Ryoku EMS Mat & 3) gogadget.com
Products used: the Ryoku EMS Mat -- it's supposed to massage your feet.