If you have an iPhone, iPad, or Mac, and you use iTunes, it’s as easy as 1-2-3.
First, you need a pair of patio speakers. Ideally you’ll mount them up under eaves or an overhang that allows them to be somewhat protected from the elements. Speakers that mount flush to the wall can be subject to vibration, so try to mount them on brackets that give them a little breathing space.
Bonus: not only will that reduce vibration, it will also help the overall sound of the speakers.