Raj, The QXCI is a computer program that reads the body reaction when the various vitamins are placed on a tray that is attached to the computer via the QXCI machine. I also am hooked up to the QXCI machine via bands around my ankles, wrists and forehead. Hope this helps, Phyllis ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn