Drivo 2 weired sound

[simone.salvo]

Italian:
Pochi giorni fa ho acquistato un drivo 2, correttamente montato emette un suono che a me non sembra normale, di seguito un link dove potete ascoltare i suoni emessi. Cosa ne pensate? A me sembra di ascoltare sovente un cigolio.

Some days ago I received the elite drivo 2; I have been trying it yesterday and today and I am not convinced about the “sound”. Comparing with the normal sound you can hear in any testing video seems a bit too much “mechanical”. I have been registered the sound in three mp3 you can it in the below links. What do you think?

https://soundcloud.com/simone-salvo-294 ... und-normal