Tuning Forks 369, 396, 639, 963 Hz + Delta Waves For Sleep

Just listen while you sleep to absorb 9 hours of 369 Hz tuning forks. Includes 3 Solfeggio frequencies with 3, 6 and 9: 396, 639, and 963 Hz. 3 Hz delta waves binaural beats and isochronic tones are added to help you sleep deeply. Headphones optional. "If you only knew the magnificence of the 3, 6, and 9, then you would have a key to the universe." — Nikola Tesla Delta brainwave state is associated with meditation, deep relaxation, accessing the subconscious mind, physical healing, repair processes of the body, immune system function, release of healing growth hormone, pain relief, physical recovery, and dreamless, restorative, rejuvenating sleep. "If you want to find the secrets of the universe, think in terms of energy, frequency, and vibration." — Nikola Tesla