Hello
Does anybody know which Walkman included the MDR-2?

I think the MDR-2 belongs to the accessories of the TV Equipment KV-10P2

I believe the MDR Here
too seen.

Still another description of the TV Equipment KV-10P2 found.I see,
the headphones is with on off switch and therefore supplemental type designation.

http://my.reset.jp/~inu/Produc...R/PAIR%20KV-10P1.htm