There is probably a few hundred songs on each of those flash drives, amazing watching the world change eh?
About a month ago some kids brought a big speaker to the beach and started to party. I was looking for the power cord and wondering where they plugged into. Turns out there was no power cord it was running on an internal battery for several hours with no sign of faltering and it had plenty of volume! They put in a USB drive (like the ones above) and had a remote control, wow.