helo sir my brother in pakistan and he cant hear at all and he use to have ear aid and he was oky he leson to every body voice oky and its been four years he cant hear any voice any more he is 38 years old and with 3kids and he very upset about that he cant do any work at the moment becuse he cant hear any body so plz let us no wat to do wats right thing to do bcuse he is been so many places but nafing change he change his earaid but nafing hapend