Korean extreme Christian evangelists are taking advantage of technology. Some of them attach huge megaphones to he top of their car/truck/vehicle and drive around playing a pre-recorded message spreading the gospel... or rather, a "believe in Jesus or go to hell" message.
Other extreme evangelists take another approach, similarly. The Korean people tend not to like this way of spreading their message. I agree with them. It's inconsiderate, not personal, not loving... and not effective. But I snapped some pictures to show you!
You can see the megaphone on top of his little outfit. At the time took the pictures, though, he wasn't playing his message.