This all-weather single-speaker (or single-point) stereo ($400) performs two wireless functions. First, it contains a Wi-Fi router – it extends your indoor Wi-Fi network about 150 feet and creates an outdoor hotspot. And, it's Apple AirPlay-enabled, which means you can wireless play tunes from your iPhone or iPad through it. It pumps out 40 watts of power, so don't turn it up too high or your uninvited neighbor will call the cops.