First, take a good look at the picture of the connectors on this dock. Notice something about the USB connector? IT'S THE WRONG ONE. The thin USB connector (like the one on this dock) is an A connector, and it's the one that you find on your computer. USB peripherals have the more boxy B connector with lopped-off corners. Thus you can't plug this dock into your computer with a regular USB cable. It's not just baffling that a blunder like this would make it out the door, but that it persists in multiple generations of Insten products. INEXCUSABLE.Second, some of the pins on Insten's dock connector aren't connected as required to make this peripheral work with iPhones. They failed to ground one of the pins, so the iPhone will play sound through its built-in speaker instead of through the line-out on this dock.