MorHahamWell as they are, not really. You wouldn't really want a coiled cable for portable use. If you were to buy a straight cable maybe, the straight cables cost about $14 in amazon. The impedance is a bit high but quite manageable, just don't expect them to get too loud if you're just gonna use a smartphone.
MorHahamJust thought for penny. Pay $140 more for MrSpeakers' Mad Dog which are going to be discontinued and on sale now. Start your headphone game with a planar magnetic cans and not have to worry for a while (rest assured they're good but it doesn't end here... the headphone game never ends).