Outdoor/pool.deck system

Recently purchased a home with a pool area, nice covered patio. I'm looking to do a nice little reasonably priced system to stream music from a phone. My initial thought was to get something like a bluesound power node and a couple of ceiling mount speakers for the covered area. Should do the trick for pool days, backyard parties etc. I do have a blue sound node used for streaming in my main rig, so I thought it would be convenient to be able to stream same music inside and outside at the same time. At least I think that's how it works...

Just curious what my fellow HiFi'era are doing for outdoor systems. Are there any particular speakers you can suggest? Is there something that I should consider other than a power node? 

Thanks for any opinions on the matter!