After spending 166 consecutive days on the Duolingo app, the voices used are increasingly difficult to understand. When using the slow option to hear the phrase, the pronunciation is even worse. In particular, a young girls voice is the most difficult to understand. Keep in mind that you are trying to learn a new language and you need to clearest pronunciation of the words. I am not sure the frustration is worth the insignificant daily progress. I suggest that Duolingo change the voices, especially the young female voices.