two cards are nice , if you can add sim card would be even better, for simple tasks . by the way does M11 suports UHS-2 cards , i cant find information.

dont expect any miracles , there is a reason its cheaper ( not always) , there is a lot of corner cutting on those products, my hd6xx ( not blue) its simply black plastic not even finished, right from the mold. sound is good but looks like cheap plastic .keeping them just as reference point...

well it takes 5 seconds press to power it on or off , battery life is short , you cant use them as passive headphones you have to power it on , build quality - all plastic only metal part i found is screws , 3d doesn't really bring you anything , to me looks like another marketing move...

not mobius if you are going for sound quality and wire not a problem . all that 3d stuff fun at beginning , but you will get tired fast . I probably will sale mine .

I say go with HP-3 , focal not doing so well compared to HP3 with this kind of music . I own both .