Well...
I've yet to get in the ERJ, but I flown some pretty loud crap in my time, DC H10-13.4's with the Oregon Aero upgrade kit, ~$100, makes them EXTREMELY comfortable to wear on even the longest trips. I do have a DC H20-10X, with the new 9V battery enc. Bough it for an aero commander I used to fly, now I don't need it, if anyone's looking for one, I might sell it?