Fairly sturdy once assembled for what it is. I no longer detect any bad oder ,and I do use them. Now on to the sizing. ¡Era exactamente el sonido que recordaba de mi niñez! It?s very small and the battery life last for a while and the sound quality is so good! Of course there was no masks. Didn?t know my AirPods came with the extra tips so I just wasted my money haha The only downside here is that it wont be as simple to switch back and forth between other players. However, I couldnt close my AirPods completely. He was very knowledgable and helpful.