You first have to download the application for your LeapReader on your computer. If you are wondering how to download companion audio for Leapreader, the application is called LeapFrog Connect and is available at leapfrog.com/connect, and it will guide you through the process. This includes downloading whichever audiobook or companion audio you want for your LeapReader book which you can then upload onto your pen by connecting it to your computer. Another way to do this is that you can touch a page inside your LeapReader book with your LeapReader pen while it is switched on and it will prompt you to connect it to your computer to LeapFrog Connect to download the companion audio. When you open the LeapFrog Connect application, the companion audio to your LeapReader book will automatically download onto your Leapreader pen.