Has anyone actually used this thing? Does it really work?
Would be pretty good to piss those annoying people off talking too loudly on their phones on public transport
I wanna get something that blocks personal stereos too. They say you're never more than 10 yds from a rat in UK - and that's certainly true on public transport, some w@nker will have their headphones on blasting their very special, admirable selection of music out within 3 rows of seats at the least.
I have in mind a very long, thin, speaker with microphone that picks up the tinny cacophony, magnifies it x10, and blasts it back at them in a lateral line so only they can hear it, destroying their eardrums in the process.
Tellingly - quite a while ago, a middle-aged gent on the London tube took the law into his own hands and cut the headphones with scissors after asking the chav to turn it down - he was prosecuted for criminal damage, and got away with it.