Troubled by insomnia workaholics, crying babies, and always nightmare elderly people, still tossing and turning every night? Lover's snores ringing in your ears constantly, and you can't stand it anymore! Choose any sleep sounds, what a gentle lullaby from nature. Send these night sounds to your brain waves through your ears, it is an easier way to hypnotize and get a night of better sleep than counting sheep. After a long work, when you want to drink a cup of coffee, play some relaxing melodies