IMO, you should try buying from GearBest first. If they don't provide that kind of headphones, go to Aliexpress and look for highly recommended stores with additional keywords: original, authentic, etc. then pray  

I'm using the T400 for my ZST, cheers!

try Zs1 or Zs3 then 

http://www.gearbest.com/earbud-headphones/pp_566702.html?wid=21  

  Tbh, I would NOT recommend ZST to any extravagant bass-head or anyone who is sensitive to high (treble) spikes.    To get a better bass sound, make sure they fit in your ears perfectly, good tips will definitely pay off (try different provided tips or buy foam tips from a 3rd-party company)...

I'm not 100% sure but I think they are different. The GB link is the latest model which is Pro HD model and the Lazada is the previous model (bases on its content). The easiest way to recognize them is looking at the volume & voice controllers. Btw, you can ask the producer for further info I...

wow, 1 of a very few negative feedbacks for ZST in this thread I can tell. Besides the treble of the ZST, I don't like it either, others are good for me especially the price. 

 I'm looking for a 2.1 speakers under $100 for common use only: some gaming, musics and movies. Any good options at that range?    p/s: still waiting for my ATR !!!

wondering if a T400 or T200 will fit in my ZST? 

Perhaps. I think the ideal is to find your best tips to get the best seal ^^ 

I don't own the Pro HD yet buut I don't think so ^^

how about this? is this your recommend store?

on your link, it does say that they are COMPLY foam tips?

Thanks, but I can't read spanish lol. Is this the same?

I want to buy those foams as well, can you give me some good brands to get them?