2 Hz DELTA BINAURAL [90 Hz Base Frequency] Delta Brain Waves Information (0.5 to 4 Hz): 0.5 Hz – Relaxation, helps soothe …
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2 Hz DELTA BINAURAL [90 Hz Base Frequency] Delta Brain Waves Information (0.5 to 4 Hz): 0.5 Hz – Relaxation, helps soothe …
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