Barbie Girl™ device is an MP3 player that you can customize with hot looks, fashions, charms, and more. She’s also your key to unlocking some cool stuff on BarbieGirls.com! To connect your Barbie Girl™ to your computer, go to the “Online Play” section of your instructions and follow the “Installation and Registration” directions. When referring to Barbie Girl™, we use the words “device” and “MP3 player” interchangeably.