ATON is an electronics company that specializes in distribution equipment of audio and video signals.
The ATON DLA2 for example, is a 2-room remote controllable speaker selector, that lets you connect multiple speakers to one amplifier channel and switch between them. This concept can grow to the DLA4 and DLA6 which offer 4 and 6 speakers per amplifier channel respectively. RF remotes and room touchpads are available to work with the DLA.
For digital audio signals, there's the DH44 which sends coax or optical digital signals over CAT5. Other ATON gear does the same with component video.
ATON also makes the Storm Series of in-wall, in-ceiling, and outdoor speakers.