[MuZo2]

 While browsing Taobao I found MUM A3R.  There have been recently lot of good iem from China.
DQSM D2, QT5, Musicmaker , Rose ...
 
These iem look stellar, Not sure of sound as I did not find any review of it.

MUM A3R



 
耳机参数：

110DB

16OHM

耳挂式

3动铁发声驱动器（2中高+1低频）

支持0.78插针换线

 

 

[isai]

Very good catch 

. They are lookers for sure. 
I translated their taobao page but the translation fell short seems like you can customize many things but are they customs or universals or both?
Didnt find any info on the drivers too unless you go for the model name with suggest 3 but just speculation.
Anyway maybe somebody can chime in with more info.

 

[graffy1]

After using some Chinese earpieces, I come to be disappointed by the sound quality.
 
But this item looks intriguing.
 
So subbed.

 

[FUYU]

Looking nice. Wished for a 3+1 or even 4+1 Hybrid.
Edit: They actually have a 3 driver IEM, but at 800$.

 

[MuZo2]

They were 300$ on taobao.
http://post.smzdm.com/p/458100/
Here is review comparing to Dunu. I used google translate but doesnt help much.

 

[Xymordos]

On Taobao there are tens of hundreds of CIEM DIYers and even more BA UIEM makers. It's literally impossible to try them all out.