Guangzhou audio and visual types of U.S. companies plan classrooms 
 1, Simple 
 The easiest way is to configure a computer classroom, an LCD projector, a screen. Other signal source equipment, switches, audio system, terminal equipment can be selected. 
 2, Standard 
 It is the multimedia computer technology combined with conventional audio-visual media. General requirements for the following main functions: (1) can play text, images, animation, video, audio and other media information. (2) physical Showcase image on the big screen can be displayed. (3) is equipped with sound system and control screen, curtains, lighting and other related auxiliary equipment. (4) can be associated with a variety of information networks, such as campus computer network, satellite television and campus cable television network and so on.