As this other buyer, Steph, April 9, 2013: "But cons, 4 received tags, there were two strictly identical pairs ... What makes that command did not allow these 4 variants, but only two, so no interest ... " Zallandyr which you reply: Hello, aware that the chips are easily programmable, so you could have quite given new those features that made you duplicate. (...)
So YES tags are reprogrammable Zallandyr BUT NOT THEIR ID: if you change the programming of a red tag, all red tags will AUTOMATICALLY programming EVEN NEW! Can not change the ID of a tag (or so, I'd like to know how !!!) So, yes, my purchase is fine, but the point of having two red and two black tags tags is NULL ! And I am VERY DISAPPOINTED!
