Anders_ASUSEarpiece may not be of cheap quality but definitely it's not able to reproduce entire frequency range properly.
Maybe I will do this comparison just to prove my point, but unfortunately there's no time right now.
The earpiece speaker is not cheap quality, it's just small. It had to be to fit inside the flip camera. We found that it was good enough and met our requirements to continue with the design but now we know that the requirements for India are even higher. With that said, we still think it's close in comparison to similar phones that also have some kind of pop up camera.