I've owned these since new and are the original, pre-Quincy Jones models before the whole headphone revolution took hold.
Despite their age, 2011, they've actually had very little use as the Class A headphone output on my Sentec was gutless. Body is yellowed from UV in my window, perfect original condition till the plug got chewed off, a sad and angry day. You can see her teeth marks on the headband. Not much to say about 701s you cant google about. Buy a plug and enjoy.