Do you remember the old days of Ghetto-Blasters? People (mainly black) walking around carrying a great big 'portable' stereo system and annoying everyone?
Well, they're back.
But this time, they are small and sound cr*p as the speakers are, at the most, 1½" in diameter so everything sounds so 'tinny' as they are built into mobile phones.
Now, who's bright idea was it to do that?
Didn't they think of the annoyance this could cause in public places like buses etc?
It's bad enough standing next to someone with headphones on and listening to music that people can hear from 100 yards away but when these inconsiderate people have a loudspeaker, the annoyance value increases ten-fold!