This is where it gets a little complicated for younger kids. But I expect these probably are the week link in the system if there is one. It was that good. They put a mic in with elements that don?t connect to it. The battery life is also incredible. In my research I saw many reviews and top 5 lists with these being near the top. *1. ) di altezza del tacco. )Its pleasant to find you can easily replace the part that eventually wears out without hassle and continue to use a product that is made to last. That is how amazing this set is.