Looks like Kaisheng is going to release the X3S ahead of the rumored X1 (or maybe instead of), looks like it uses the same cover as the DB1E and the DM7. The tuning is said to be a younger version of the Titanium Bell P according to
this post that Kaisheng reposted on Weibo, not sure exactly how that is supposed to be translated.


Hufi Super Topic Kaisheng DM7 New Edition & X3S New Edition Unboxing Review
In his daily life, Kaisheng has accumulated a lot of metaphysics and applied it to DM7 and X3S.
Therefore, the new version of DM7 has a higher quality, and there will be no sense of disobedience even when paired with a flagship player. With a slight reverberation, the sound base is very smooth, and with the excellent quality, it is very versatile and easy to listen to.
The tuning direction of X3S is the younger version of Titanium Bell P, with a very high sense of quality, emphasizing the texture of the line vocals. If you like the tuning that tends to be analytical, then this earplug is not to be missed.
If you insist on asking me to choose, I will choose the new version of DM7 with my eyes closed!
(Machine translated from Chinese)
I'm interested in this earbud especially since it claims to be an analytical tuning, hopefully it doesn't cost too much more than the standard X3. I wonder how this will compare to the DB1E and DM7, I thought about getting the DM7 but the price, stem design, and lack of reviews kept me from pulling the trigger.