Sdílený zvuk

I found a phone on the side of the road with a cracked screen and no lock on it, which already felt strange, but what made it worse was that it only had one app open, a notes app with a list of times written down, all just a few minutes apart, and as I was reading it the phone suddenly vibrated and a new time appeared at the bottom, exactly two minutes ahead of the current time, I thought someone was tracking something so I waited, and right when the time hit, a car sped past me out of nowhere,