The frame is very light weight but if you use bolts screws instead you won?t go wrong other then that the item is a beauty! Worst ever. " To be honest, I dont think many people think about EMF radiation, but if youre one of those who do, then these are the headphones to get. Overall sound quality, I gave my top spot to the Bang & Olufsen Beoplay H9. Slightly too big. These give my feet the wide width I need, thank you! This is the second time I but the same model and one of the earplugs stops working after a few days of usage Quality is really good. made well small can put in pocket . MATERIALEil materiale è silicone morbido, da tendere prima dellapplicazione, che non ha dato problemi.