Yesterday and today I received my Xiaomi Piston orders.
The one from Ibuygou are the originals.
The one from Ebay appears to be fake!
Here a short comparison of the real one, and the fake ones.
The box in which it came:
Left side = Original
Right side = Fake
The fake ones came with a cheap paper manual.
Next the rear of the box:
Again, Left = Original / Right = Fake
Notice the different specifications, the different colour and the skew way the sticker is applied on the fake one.
The original xiaomi piston has a more refined pattern and a much finer groove, the fake ones have a messier finish.
This difference is visible over the entire product, the original is made with an higher sense of quality.
Last one: The nozzle. The Original has a far wider nozzle.
Sound wise: The fake ones sound veiled with a all ruling, bloated bass.
The original sound much brighter out of the box, with a nice balance.