What? Are you kidding me? Still chasing this? Seriously do you want to sink any deeper? Why not accuse ClieOS of having fakes, along with everyone else who bought first revision ex700 from authorised resellers.
1. what I said above
2. housing is magnesium not plastic
3. ex700 originally came with blue and red, and changed to grey at a later stage, probably due to all the knock offs on the market. In any case why would the knock offs use a different colour?
4.Packaging and Y splitter for knock offs is clearly different. My one came with authentic hard case, not soft pouch and was bought from an authorised reseller...
5.Silicone tips - knock offs dont come with set of 7 sizes each with different neck
6.The knock off you linked doesn't even look the same - L and R are not circular, and show different detail on each picture.
7.
refer here for detailed discussion of this
8.Sony logo on knock offs is painted not molded with silver metallic brushed effect paint
9.if this is a knock off its a pretty good one with a sound signature that correlates to every review I have ever read, and actually a very good sound in the lower midrange, treble and bass.
10.Why bother really - most of us have moved on.