Wireless Audio Through USB

[Syslik]

Does anybody know if there is a usb reciever which you could plug into the mac (through usb presumably) and then have a reciever at the bigger speakers to play music. So the end result should be that i plug in a small thing into my mac and then can go around the room and play music through bigger speakers. Logitech has this but only for PC. Something like the Logitech® Wireless Music System for PC.
Thanks

 

[orangezorki]

Maybe it's not what you are looking for, but the Airport express does go some way to doing that.

David