Let me tall you a story..
Recently, mum has washed my cloth without pocket check.. My portable setup (Cowon Iaudio 7 + VSonic GR07) had a killing trip for an hour in washing machine (full with highly aggressive mess).. The centrifugal power inside that machine was so big that gadgets had left my jacket's pocket.
IAudio 7 DAP died without any chance of survival... BUT... GR07 actually survived.. And the most wonderful thing is, those had not lost any single drop of performance (after complete dry-out of course) ...
So, those of you, having doubts about VSonic In-Ear product quality, should better relax, or at least not worry to much...
These earphones are made like tanks !