Thanks, that makes much more sense. It's really misleading because most pairs of IEMs and earplugs do list the NRR in db. I routinely sleep in my SE535's, whi

Thanks, that makes much more sense. It's really misleading because most pairs of IEMs and earplugs do list the NRR in db. I routinely sleep in my SE535's, which offer 37db NRR (I looked it up after seeing their 70db claim).