More and more companies have abandoned traditional offices in the development process, adopting an open office design to make the space more flexible, while adding a variety of communication scenarios for the office space. But many problems have followed. Many office workers have been plagued by office noise. In addition to the noise of the machine, there are many ‘human-like’ noises, such as loud conversations between colleagues, or bringing children to the office, which will become invisible that affects work efficiency and even affects the physical and mental health of office workers. Killer.”