**mp3 file is the compressed file which has lower audio quality than wav
High Delta Wave Binaural Beats (Binaural Tracks Series, Vol. III)
For falling asleep, easing into a trance, or allowing your body to rejuvenate. This piece contains high delta wave binaural beats, which decrease our awareness of the physical world. Interestingly, delta waves are the most present during the deepest stages of sleep.