The PT-VX400NT provides a host of convenient wireless functions, including Live mode & Multi- Live mode. In Live mode, the image projected is identical to the image seen on the PC screen. In Multi-Live mode, you can wirelessly connect with multiple PCs. Other wireless functions include Selective area transmission, Secondary display transmission (Wireless Prompter), & a 16-window index style that lets you project images from up to 16 PCs at the same time. Wireless transmission is possible from one PC to a maximum of eight projectors at a time.