What you will hear is a voice that relays an account of events about to happen in the immediate future. It's like a sportscaster relaying the events occurring 10 seconds into the future. As time goes on, you will be able to make out this voice under increasingly noisy circumstances, to the point that it can be heard at any time by just concentrating. Such an ability would doubtlessly be invaluable, no? You will be able react to any immediate danger, relate to people around you with greater ease. No one would ever surprise you. Now, of course you are wondering what sort of horrible catch this ability entails. Perhaps the tone of the voice is so horrible that it will drive you mad, or maybe the voice will only predict your death over and over again. Of course this isn't the case, though, its a normal voice, your ears receive it no matter what, it's simply a matter of noticing. But there is a danger. For you see, where there is a voice, there is a body. And just like you will notice new sounds, so shall you notice new sights. More importantly, you will be noticed.