Good news, my Msur N350 arrived today.
Im not going into details about the sound yet, i havent test them enough.
They are much lighter and smaller in size than i thought, about the same size as my Takstar Pro 82. Mainly made of wood and metal except headband which seems to be plastic. Pretty solid build quality in overall. BUT... i noticed that one side of the headbands seems to be broken from the bottom. I cant rotate the earcup holder at all and its almost stuck in place and it does look like its starting to break away. Its not swinging or loose or anything but it still looks and feels suspicious. I already contacted the seller about it, lets see what happens.
Comfort is surprisingly good for an on-ear headphone. Earcup is oval shaped rather than round which probably helps and it covers my ears quite well. Clamping force is light. Someone said in the Msur-topic that they dont isolate but i have to disagree, when i start playing music on moderate or even slightly higher volume and press the earcups together sound leakage is very minimal. Those little holes dont seem to leak any sound, i dont know whats the purpose of them. Its very hard to hear whats happening around me while listening.
Ill come back later to give some thoughts about the sound.