This is not sleep music. It should be listened to when you are awake.
We have used binaural and isochronic tone patterns between 12 and 20 Hz (Alpha – Beta range). You can listen to it with or without headphones or earphones.
This music can help you increase concentration, vitality. You can use it against fatigue, it reduces work anxiety. We recommend listening to it during work or study hours for at least an hour and a half to hear the entire frequency pattern.