The 8x8 Matrix RMT remote control lets you control your Matrix switcher from up to 1000 feet away. This unit can be used to switch video in 3 different ways. The 8x8 Matrix RMT is connected directly to the Matrix device via CAT5 cable, you may push the buttons on top of the RMT Remote to switch video. The 8x8 Matrix RMT can also switch video wirelessly via infrared using the Gefen RMT-8IR. Finally, an RS-232 port on the back of the Matrix RMT allows switching via a control device.