Not sure what has been said already, but...
Currently using the DC H10-56 in the S76C+. With ANR, it is a great headset. Durable, and good ANR. Yes, its heavier than the Bose, but I have a strong neck so I don't actually notice the weight!! Passive noise reduction is good as well. You could fly a shift without your ANR with this headset. I've heard the Bose passive NR is not good at all (but have never tried it).
I have the old 9V battery box. I've never actually checked how long the battery lasts...don't really want / need to know.
cl12pv2s