Binaural beats are an auditory illusion created when one tone is de-tuned creating a second tone and the resulting two tones are sent to each ear separately through specifically designed headphones. The difference between the two frequencies, creates a third oscillation that automictically entrains the brain into different brain-wave frequencies. For example, entraining the brain to increase Alpha waves, the range associated with meditative, calm emotional, cognitive and relaxed states. Research has shown that in addition to affecting our states of consciousness, Binaural Beats have an important effect of synchronizing our brain hemispheres.