Through a mixture of inattention and carelessness I have 2 unopened black ZS6 from the initial big discount Gearbest offered the first time. That's in addition to the opened red and black pairs. So if it turns out that there really is a mk2 of them and someone feels a need to have an older pair I'll be happy to arrange a deal for whomever wants. Right now they're just sitting in their boxes since I have no reason to open them. Of course that's in addition to the ZS5 mk2 that's unopened sitting right there next to them since I already have 2 of those opened too. Actually they're sitting on the unopened BossHifi B3 since I ended up buying a duplicate of that too.
Good news, I thought I'd duplicated myself again when I got an ED9 and EDR2, think I got the model numbers right. They are practically identical in configuration, topology but they're obviously different sizes when compared. But I'd received them about a week apart from each other and it wasn't until I went to the burn-in pile to grab something to replace what I'd just finished with did I realize that they were different.
I like both as a small discreet for napping or sleeping IEM that sounds decent.