It's HiFi, over WiFi. Got that? Now cross your fingers and repeat that three times, lest you forget exactly what the Phorus PS1 speaker and PR1 receiver allow you to do. So it's a WiFi speaker and receiver combo? Well, almost. There's also an Android app that ties it all together. Load it up on your phone, or whatever Android you choose, and it'll sniff out all the (90dB) Phorus speaker