The sound waves are vibration, and the volume should be adjusted so that the sound waves can be transmitted to the entire brain.
It is important to listen for a long time. When the user's brain starts to accept the "brain-on" sound, the brain reacts to the low volume
Above all, it is important to use it steadily for a long time.
The sound waves are vibration, and the volume should be adjusted so that the sound waves can be transmitted to the entire brain.
It is important to listen for a long time. When the user's brain starts to accept the "brain-on" sound, the brain reacts to the low volume
Above all, it is important to use it steadily for a long time.