Best headset for Xperia Z2

Hey guys
Last week I had lost my xb90
So now I am looking around for a new headset i found these three
1- Sony MDR-NC31
2- Sony MDR-NC750
3- Sony Xba-a1ap

I had never try the Digital Noise Canceling headset so i am just confused about them..

Can anyone tell me that there is any difference in terms of sound quality between Sony NC31 and NC750..

Specially after updating to (MM 6.0) because Sony clams that NC750 will support Hi-Res audio..

Please reply

Thanks..


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