Nearly half a year later I can report on these:
a) they work
b) the ANC actually works (and not too bad)
c) the OLED screen is kinda neat
d) they sound like shiitake mushrooms ... totally muffled ... no joy there really ... what a shame ...
e) case and buds are a slight tad smaller than the XM3
f) they look MUCH cheaper than the XM3 ... cheapo plastic!
They might have been interesting 6 months ago, but by now we have so many more and better entries in the budget ANC game ... unless you see them somewhere for 20$ and you feel like 'hoarding' ... I can't really recommend these
(They are also known as the 'Evon Pro', that's at least what the box is saying)
Semi related, it appears that
OneOdio jumped on that form factor bandwagon for their first (AFAIK) tws entry ... but with nifty wings and no OLED screen (also, now that I check, they have 4 charging contacts, those Evons have only 3)