Flat Speakers

Wow, these are cool. New loudspeakers, less than 0.25mm thick, have been developed. They are flat, flexible, can be hung on a wall like a picture.

A real bonus is that its method of sound generation could make public announcements in public places clearer, crisper, and easier to hear because it delivers planar directional sound waves, which project further than sound from conventional speakers. I think they will fit nicely on the wall beside my flat screen TV, if I ever get one.