the thing about the control, they have ir transmitters to extend the range of the ir. also there is ir distrubition devices where they have a ir reciver in one location say right next to the sound boardx, or if you have multiple recivers next to the light board or computer and then it takes that signal and distrubtes it to ir transmitters that are position right in front of a vcr, computer, dvd player, projector or other devices that could be in another room or just behind you. And you could use any remote because all it is doing is spilting or duplicating the signal you sent to it.
so thus, you can use a system or device like this to focus, zoom, etc for the projector to control other devices.
so thus, you can use a system or device like this to focus, zoom, etc for the projector to control other devices.