At its heart is the Echo Chamber, a megaphone-like device that captures a person’s voice. The megaphone then transmits the voice via LED cord, and eventually splashes it against the wall.

One of the most recognizable hallmarks of the Occupy Wall Street movement has been its “human microphone,” a technique through which protesters make speeches louder without the use of ...

Occupy Wall Street: Police use military megaphone to amplify their point to protesters ... where it functions as the world’s clearest megaphone. “We don’t use it to disrupt.

David Vella, Henrik Pettersson, Tom Leitch, and Tom Hannen built the Inhuman Megaphone at this past weekend’s London Music Hack day event, where hacker types team up with each other to conceive ...