Why is there a mobile phone behind Tik Tok?

According to my experience, there is a mobile phone photography during the live broadcast of Tik Tok, which mainly means to help you record the live broadcast function through mobile phone photography. This function is perfect, which can help you record all the picture information when Tik Tok is broadcast live. This kind of mobile phone photography is not available to ordinary people, and only through long-term live broadcast can we get distinguished treatment.