wifi speaker sendind unit

I'm considering using some sort of wifi sending unit to power two speakers to the sides of our bed. We have two nice speakers in front being powered by a Pioneer VSX-94TXH receiver and I want to run two speakers of similar quality without running cables under the carpet or resorting to major sheetrock attic renovation. Any ideas would be appreciated, I know I read something on this approach awhile back but I can't find the article.
Kef makes wireless speakers, some others are out there by others as well.
you might like to check out this KEF website:


They have a product that does exactly what you are looking for. A device that sends the signal from your receiver to your speakers wirelessly.