NICT's ethernet speakers

For reasons best known to themselves, the Japanese government's National Institute of Communications Technology has seen fit to invent some speakers that you can plug into a network via an Ethernet cable, from which they also suck up power. Apparently it's possible to beam sound to them wirelessly, though the ITmedia report doesn't go into any more detail. They come with Windows drivers and some audio routing software, but we're just gonna assume this is a little more of a "we did it because we could" kind of thing.