Gateway Hemi-sync Tapes Free |best| 【360p 2027】

: Set the volume so the narrator's voice is barely audible to avoid being startled after silent periods.

When a frequency of 100 Hz is played in the left ear and 104 Hz is played in the right ear, the brain perceives a third, oscillating frequency of 4 Hz. This delta-wave frequency coaxes the brain into states mimicking deep sleep, while the listener remains fully conscious. Gateway Hemi-sync Tapes Free

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