wireless speakers

I'm interested in wireless speakers for my pateo outside. Any advise as to what kind of outside speakers and wireless systems would be appreciated

I've got a wireless speaker that we've used outside and in the living room during a party. It's an Advent AW810 that I bought as a christmas present for about $85 about three years ago. It works reasonably well - you're never going to mistake it for my Paradigms, but it gets the job done pretty satisfactorily.