These IEMs have been working quite well for me, for the past 16 months, EXCEPT for the extension cable. It's thin and fragile. I'm using a thicker Shure extension cable instead.
As for sound, the bass is impressive. The treble is always smooth. A signature which is perhaps not very far from my Momentum Over-Ears (the MOEs are better, but not as portable).
As for sound, the bass is impressive. The treble is always smooth. A signature which is perhaps not very far from my Momentum Over-Ears (the MOEs are better, but not as portable).
My first set was a review set that suffered from severe driver flex in one ear after 2 weeks.
My second set developed driver flex on both sides after about 20-30 hours of light use over 6 months.