Was it on this group someone was aking about wireless speakers?

Was it on this group someone was aking about wireless speakers? I have a set of RCA Stereo wireless speakers and they are fussy as all getout to get tuned properly, and get interference if you walk between the speakers and the transmitter. They are WSP150 model and can run on 4 D cells each or a wall-wart.
I also have a set of headphones from the same series - not a lot better.
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