I use the sennheiser HMEC - 25 stereo. Awesome headset, much smaller than a DC... Great ANR. Only downside is the batteries need to be replaced once per 4 day. I mitigated the expense by just buying a set of rechargables. I keep 4 sets with me @ all times.... Just to be safe. If the batteries crap out, you still get okay reduction with just the passive over the ear setup... Plus they are small enough to fit inside of my flight kit, without doing anything funny. Check them out, they are pretty nice...