Isn't it already a "copy-cat" of Trinity Atlas? At least the housing and the filter system.   You said it comes with a “water resistant” carry case, and as Trinity Atlas is splash-proof, do you if this SENDIY M1221 is splash-proof too?

http://www.head-fi.org/t/796729/trinity-phantom-series-new-thread-worlds-first-push-pull-hybrid-iem/4110#post_12724414

Did you receive them in a black case instead of a white one? And without box too?

I believe that you can't use Head-Fi discount for those.

  SONY MH410C (the one that comes with Xperia), the old Apple Earbud, Awei ES10, a Blox that uses the mx500 sennheiser shell, Sennheiser MX985 (but this one is big to, i had to remove the rubber ring)...

I am thinking in getting one DK-Pu DK-JIN. http://www.aliexpress.com/item/New-Original-Wooden-Earbuds-Wooden-Bass-In-Ear-Headphones-Bass-DIY-Magic-Sound-Headset/32576959704.html But i had a confort issue with the MrZ Tomahawk (but for me Asura is confortble). Anyone can say if the DK-Pu DK-JIN...

What earbud is that between TM7 and Zen?

I cant decide between DK-JIN, MrZ Tomahawk and Shozy Cygnus. MrZ Tomahawk is really cheap right now on aliexpres, probably is the best bang for buck.

Here we are talking about Fiio EM3 earphone, not about Fiio M3 or Fiio E3.

I think that Fiio should design a sport IEM with strong bass and a warm signature to use with the Fiio M3.

Do you have an AN16 to compare it against the SEC-CL100?   btw: Fiio sells its TITAN 1 clone, the EX1, cheaper than Dunu.

Are you sure it is driver flex?   If you hear it when you move your head i believe you are hearing microphonic from the cable

Probably a lot of people bought and asked for refund. We know that, even if they are genuine, it is hard to prove it when you sell without package.

And they have a dual dynamic too.   I am asking myself if it features a dual phase push-pull driver system.

Maybe this is the OEM:   OEM/ODM HR900  http://www.aliexpress.com/store/product/Free-Shipping-Do-For-OEM-ODM-HR900-Double-moving-coil-Headset-bass-HIFI-Headset-music-mobile/302582_32364820052.html