Yes, controls of the N3 are a little cumbersome, but this is very easily overcome by installing the new firmware (2.0) and the latest version of HiBy music with HiByLink on your android smartphone. With that, you can just keep the N3 in your pocket and control it through the HiBy UI on your phone via BT. The M2s has the same functionality too. Yet, the sound qualities of the N3 are amazingly good, imo, the sound is clear, transparent, dynamic, open and powerful. Just check the many reviews around (including my own). The one review I just read on the M2s on theHeadphoneList, as good as it is, doesn't give the M2s as high marks in the sound department as in everything else. Before making a final choice, I suggest to compare the two, if you have a chance to do so.