Once upon a time, "iPod speaker docks" were considered the easiest way to hear music from an iPod (and, later, iPhone). Recently, however, two things have changed the speaker dock landscape: the rise of wireless speakers (AirPlay or Bluetooth), and Apple's transition to the new Lightning connector, which isn't compatible with the old 30-pin connectors, accessories, and docks -- at least, not without the addition of an expensive adapter.