1 Hour 3D Nature: Beach Wave - Brain Power of Concentration, Healing Power of RelaxationThe 3D nature sound creates interactive virtual reality experiences to concentrate while studying or working.Double Power of Miracle/Love Tone (528 Hz) & Crystal/Angel Tone. 528 Hz frequency used in DNA repair had been a part of an ancient scale. This tone repairs DNA to initiate transformations and miracles.We strongly recommend using headphones. Put your body into a balanced resonance and see the true discover of the healing tones.