A video sender can be used for audio only, here's one:
http://www.letsautomate.com/10773.cfm

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Kenny Cargill

"JoeSpareBedroom" wrote in message
...
Situation: A friend's got a laptop 10 feet from her stereo receiver. She
wants to send music to the receiver. (I know - headphone output's not
ideal, but that's her problem). Running a wire is not possible because of
the stupid design of the house. Is there some sort of two part wireless
toy that can do this, preferably smaller than a toaster on the laptop side
of things? If it exists, Circuit City's got it really well hidden on their
site.