[...] I should mention that while IrDA uses the same wavelength as "Commercial IR" (what remote controls use), it runs at a much higher speed and a much lower power level. [...] Also, I'm not entirely sure there's enough room in the existing case to fit both an IR receiver LED and an IR transmitter LED (at least for CIR)... EDIT: I should mention, if you're taking requests , it'd be nice to have an LED that provides a little more output power.