It's a possibility...
But I thought there were issues with those on the 770.
Does that work now? I tried searching, but it seemed a bit vague as to whether or not it will work on the 770, with or without ITOS2007HE.
Currently, I am running ITOS2006.
Of course, there are the ones that plug into the headphone jack that might work.. But as you said, maybe a bit more high tech that I need.