Bluetooth Speakers

Remote Speaker - Bluetooth - connection I need an Electronics Engineer to design a system that would allow me to link a remote speaker (with integrated amp) to a mixing desk. I'm expecting the solution to use Bluetooth connectivity. Need encryption of some sort to restrict other people gaining access and transmitting to the speakers. I want to use this setup to enable a band to play venues where there are 8 x remote speakers and we don't want to have speaker cable scattered around the venue.