After wandering back and forth between Sony XM4 and Beats Studios3, due to the appearance and iOS user I am, I chose Beats, the phantom gray.
I have to say the appearance of Beats Studios 3 is so nice.
And the sound quality is pretty good. The connecting speed of Bluetooth is very fast as well.
Most of all, the noise-canceling function is so powerful.
What is a pity is that I will feel uncomfortable after wearing it for a long time.
Jason 
