Adapted from the Web page: AutoZen generates sounds meant to cause the user's brain waves to shift to a different dominant frequency, resulting in an altered state of consciousness. If you are under treatment for any psychiatric or neurological disorder, you might want to approach this with caution. You must use headphones for AutoZen to work at all. The effect depends on each ear receiving a different tone, and the combination of the inputs in the brain. If you are deaf in one ear, it will not work. Author: Steven James WWW: http://www.linuxlabs.com/autozen.shtml