What product code does classroom sign belong to in invoicing

The classroom smart class sign invoice belongs to the broad category of modern services. Smart classroom sign is an important part of today's school culture construction and information technology construction, it is an intelligent device that coordinates the daily work of the school, information dissemination, classroom culture display, classroom management, etc., to realize the intelligent management of the campus. Installed at the entrance of the classroom, the smart class sign displays the name of the class, class culture, and is also a bridge to promote communication between the school, class, teachers, students, and parents. It has become an indispensable backbone of smart campus construction, providing a platform for improving the quality of campus teaching, promoting the overall development of students' moral education, and shaping a strong campus cultural environment. Smart class sign, as a campus information release window, class culture construction window, home and school communication window, through the smart class sign, you can create campus culture construction, but also to provide students with colorful campus life, growth of extracurricular knowledge, expand their horizons, but also to strengthen the school, teachers and parents to communicate, to develop scientific and reasonable teaching methods. Intelligent classroom signage is different from traditional classroom signage, which only displays the name of the class, while intelligent classroom signage, in addition to displaying the name of the class, can also be used for interaction, information exchange, student registry management, classroom feedback management, attendance statistics, and selecting the class to go to the classroom.