Split audio and audio-visual, as the United States and Guangzhou in the control M4000 features: 
 - AV6X2 video switching 
 - VGA3X2 signal switching 
 - 2 Way MIC input, easy to explain 
 - 1 way computer switch control interface 
 - 2 way anti-theft alarm device, all the way for the system switch interface, all the way to 
 - Special anti-theft alarm system, when the latter fortified circuit, direct drive for the discharge power alarm 
 - 6 way IR control interface 
 - 2 programmable RS232 control interface 
 - 1 channel remote control receiver port extension 
 - 5 way independent power control equipment, including computer interface, power supply, for the discharge source, the projector watchdog the power, sound power, electric screens 
 - 1 Road, scalable network interface 
 - User-friendly design, system of a key connections, the use of more simple 
 - User-friendly design, the projector features a key-linked 
 - Digital Showcase and simulates adaptive selection Showcase