Do you often suffer from insomnia, anxiety, or irritability? Are you a member of a high-pressure population? If you say yes to the above questions, please try EZ Doser. Through the visual stimulation and auditory stimulation of human brain, it can help you release the long-term accumulated pressure and ease your tension, sooth your heart, improve your attentiveness, and accelerate for sleeping. It consists of three auditory sense modules and two visual sense modules respectively are “Relax", "Hypnosis", "Calm" and "Dynamic", "Static". You can choose different modules according to your own situation. Particularly suitable for: students, officer Workers, doctors, and journalists. We recommend users of this age between 15 and 60.