Projector and IR audio?
I was lucky enough to get a free projector recently, and would love to use it camping. But of course I don’t want to be “that guy” who annoys everybody else with noise after dark, so last night I star...
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IR is line of sight, and that's OK in the tight confines of a minivan. Will be problematic in the setting you are proposing with people moving around, getting up to get drinks, etc. Bluetooth (or other RF solution) has the advantage not just of range but not needing to be line of sight. You could get up and go to the head and not miss any of the audio of the movie
