Okay, I don't know what the official name of the product was but does anybody remember it from the late 80's?
Topround didn't believe me when I told him about this little gem.
No, not these -
Nooo, not these -
But like these, but in leather I believe -
And have been rebranded as the "Batphones" - 
Phoenix rises again...goes to show how a product of dubious claims can resurface as something else of equal claims or maybe not.
What was the name of the orginal one? Anyone remember? Hey, I guess the audio enthusiasm clan may see these again.

L