Oops just noticed I linked to turning an audience and their devices into a stereo system.

Here's the movie clip I speak of above http://vimeo.com/m/93899424

This is new(ish) type of technology that requires solid and FAST Internet. It may or may not work in various countries based on Internet speeds (10Mbps or higher is recommended ... Possibly 5Mbps of higher could work too. )