The DR20 are on their way to me for a while now, I'll write a review when I get them on http://audiobudget.iagucool.com/brand.php
Guys, KZ HDS2 is available here:
http://www.aliexpress.com/item/KZ-HDS2-6-MM-Headphones-Fone-De-Ouvido-Earphone-Auriculares-Steelseries-Go-Pro-Audifonos-dj-Earphones/32530156740.html
Wrote some reviews on some UiiSii products, HM6 and HM7, and will finish writing the review for their "flagship" UiiSii i1 today.
http://audiobudget.iagucool.com/brand.php?id=UiiSii
I'm also trying to find a nowhere-to-be-found UiiSii HM8, with 12mm driver, and is designed similarly to Sony MDR-EX650AP.
http://www.globalsources.com/gsol/I/Mobile-phone/a/9000000135943.htm
Hope you can somehow find the sneaky person, because I was unsuccessful and the seller on the official AliExpress store didn't respond yet.