Anyone who has spent at least one day in Mexico City has definitely come across this recording. It is hands down one of the most distinctive sounds of the city. For those who haven't unraveled the meaning of this mysterious voice, here is a video of it with subtitles.
If you are working on your Spanish, get access to my set of flashcards on Quizlet to integrate these words into your vocabulary. Find the link at the bottom of this page.