This is MIND FLEX, a 2009 product of Radica for Mattel. The user puts on a headset, and, well, "thinks" at the base unit to control the intensity of a fan, that's used to guide balls through obstacles. I've tested it, both the base and headset, and as far as I can tell, it works! HOWEVER, this set is incomplete; it's missing 1 ring tower, 2 rings, and the instruction booklet, hence the relatively low starting price. It will ship promptly via USPS Ground Advantage or Priority Mail.