I have mentioned that our headphones use multiple lays veneer plywood instead of a layer of veneer on the top of plastic. This material is very solid, thin and sound great. Our headphones are so reliable that it can survive after 1.5 to 2m drop test. Comparing to nature wood, it is easy to make, but much heavier, and easy to be damaged. Natural wood earcup never passed 1meter drop test. I saw people never take my words and keep blind.