So far im enjoying the yersen a lot. Im not an expert in this topic but ii can say that this iem sounds better and louder than my zs3, the housing is made of metal and the construction is really solid.
Its really small but the power of this thing is amazing.
About comfort, i tried them with the cable over the ear and i felt as if i wasnt using any earphone (using S-size starlines tips). really really comfortable for my small ears( i think i have in my opinion) 10/10.
For 18 euro i got:
the earphones
2mmcx cables without mic(1of them has memory wire like kzs cables)
3pairs of silicone tips
3pair of foam tips
3pairs of silicone tips with filter
1hard case.
I think that all the accesories are already worth such amount so in my opinion this iem is unbeatable in this aspect. 10/10.
As i said before im new to this world of audio so my review is not that deep in terms of sound , i apologize.
I think that im going to enjoy this iem for a long time.
PS: I ordered them with an extra kz mmcx cable which i destroyed trying to detach it from the right monitor LOL.
PS2: If someone wants more pictures just tell me.