The NewReality Master Key™ and TGI KEY™ use blue L.E.D.s (light emitting diodes) and binaural beats (sounds) that pulse at specified frequencies. Each device gently guides the user from Beta the wide-awake state then into the more relaxed brainwave state of Alpha and then into Theta the best state for learning. The process is very similar to the cycle of sleep you enter into each night. Each device is like a mini computer, which stores the audio recordings, (guided creative visualizations) and then plays back your selection. The NewReality device is encoded to play only the user’s programs. If your PRO or KEY device is damaged all of your programs are easily replaced on to your new machine. Your data is always available to you on your own personal NewReality web page.