Brief introduction of responder

In knowledge contests and cultural and recreational activities (for answers), the seat number of the respondent can be accurately, fairly and intuitively judged. The traditional answering device only roughly judges the platform number of the player who successfully answers or fouls, and can't display the answering time of each player. Respondents can now use data to illustrate the accuracy and fairness of the ruling results. The game greatly increases the entertainment and is more fair and just.