The WNM80 wireless and network module is equipped with a communication card slot and a 100 BASE-TX Ethernet port. It allows both wireless and wired remote control. You can operate the projector without any cables connecting it to the PC. You can also give a presentation without a PC at all by using the PC card. Integrated control by remote control includes on/off, input selection, and monitoring of lamp status, error status and so on of multiple projectors (maximum of 254) via a LAN. You can project 1, 2 and even 4 screens simultaneously.