A brief description of the design concept: Compared with face-to-face communication, voice calls have their own limitations, because you cannot guess the person's true emotions by watching the person's facial expressions. For people with visual impairment, this matter is especially challenging. People's emotions fluctuate like ripples. "RIPPLES IN THE HEART" can distinguish seven basic emotions. Through the changes of ripples, visually impaired people can easily understand the emotional meaning expressed, relieve psychological pressure during communication, and improve their self-confidence in life.