POSITIVITY OCEAN offers you the ultimate in relaxation, the sound of the ocean mixed with binaural beats in the Delta and lower Theta brainwave range to facilitate calmness, meditation and relaxing sleep. Delta brainwaves are associated with the deepest levels of relaxation and restorative, healing sleep. They have also been found to be involved in unconscious bodily functions such as regulating heart beat and digestion. Theta brainwaves are associated with creativity, emotional connection, intuition and relaxation. To get the full benefit you should wear headphones to listen as it is the combination of what is heard in both ears that provides the binaural tone effect.