I got these off ebay 2 seprate auction. I had gotten a primo mic off ebay a while back and was looking for a mate for it. It looked like the Me-80 would do the trick. When I got the 1st one I noticed the vents by the cap where different so I picked up another on ebay. I still think the Me-80 is the same mic as the nak-300. I only have the card caps but thats what I would use most of the time anyway
Teac Me-80 on the Stereo Bar:

Tea Me-80 as a Pair:

Upclose shot of the vents on the me-80:

Upclose of the Primo which has the same vents as a nak-300:
