I have been looking for this mic for over a decade. I would have been happy with a not too beaten-up used one, but i found this new old stock! It is a Realistic 33-1085 back electret-condenser stereo mic. The capsules rotate so it can be run horizontal or vertical, powered by a single AA or two 6v r544 batteries for wider dynamic range and high SPL environments. My friend had one in college, and i was able to borrow it now and then. It sounded good with a D5, and could be stealthed with little effort. He made some listenable tapes of the 83 Hartford shows and a few Jerry Band. I can't wait to use it!