They are ear-ear, my very first I find it really Excellent and quite comfortable. (Especially since I just receive them and that I had read many opinions on the fact that it was accustomed sy). The sound quality is really very good with bass and deep herein. Meduims of acute and well analysis. (I rediscovered my music.)
C is the only that I've tried so I do but that 9 / 10 I can not compare.
In any case I would buy without hesitation. Almost as good that a high-end Hi-Fi headphones with the advantage of a Certainties comfort and discretion in mobility. (I do not support headphone open and close very long time so for me c is really a very good alternative).