I need to be able to get an audio connection out to a clients pool and running a hard wire is near impossible.  I found this product and was wondering if it would work with Casa?  Here is the link.

http://www.audioengineusa.com/w1_home.php

If not, any suggestions on how I can get an audio feed from the pc serving casa to an area where running a wire in not an option?

Thank you

The AudioEngine wireless should work fine. Also, you could try ChannelVision’s wireless audio device.
Since CasaTunes’ XLi and XLe output low level (high impedance or pre-amp) signals, any wireless speakers that will take pre-amp inputs and send them to a remote amplifier or powered speaker will work.