Does anyone know the name of these IEM's?

Saw multiple listings of these but idk if they're extremely generic or what as there's multiple names for them apparently lol, also seem to have multiple revisions or something as I saw different cables, anyways these were my first pair of "IEM's" then stepped up to the Castor (Harman), and just got the Tangzu Wan'er.

Saw multiple listings of these but idk if they're extremely generic or what as there's multiple names for them apparently lol, also seem to have multiple revisions or something as I saw different cables, anyways these were my first pair of "IEM's" then stepped up to the Castor (Harman), and just got the Tangzu Wan'er.