What do you think of them?
Even if Roland might not be the first company to produce a binaural microphone headphones, it is probably one of the most user friendly package that can be attached to the new Roland R26 or their previous ones (R 09...).
Of course I imagine that they are very sensitive to wind noise, and not for every day shoot but low profile (I would not like to carry a dummy head all day long with me) + monitoring at the same may give interesting sonic options...