COVID19 has brought a major change in our lives in terms of social and communication. Whether we have meetings at work, chattering with coworkers, or even buying things in a store, we have to talk with masks on. The mask makes the mouth invisible, causing a barrier to communicating with the psychological distance. The biggest problem is Inhibition of active communication prevents self-expression and social exchange, causing mental illness in the form of recent COVID19 blue. However, existing MIC products are not in response to the changed context and lifestyle. SOUND SQUARE means an innovative communication device that visualizes sound, mood and voice. Even if you wear a mask, or if you have a hearing impairment, everyone can see the voice and atmosphere. It enables richer emotional exchange and communication through innovative communication methods. It provides three distinctive experiences: visible, sounding, and emotional interaction. SOUND SQUARE design means an inclusive messenger with richer experiences by exchange moods, and emotions. To convey this innovative message, SOUND SQUARE is designed with a large communication window as the most characteristic. The user communicates by enclosing this rounded square window, which opens up to another user and is the passage of sound and mood.