iTunes Audiobook:

This downloadable file has been optimized for iTunes. After purchasing the product you will receive an email with a download link. Please download the file to your main computer and sync to devices such as your iPad or iPhone.  Narrated by Joel Weldon.

For help with syncing your devices with iTunes:
https://support.apple.com/en-us/HT201253 

Android users can find an app here:https://play.google.com/store/search?q=m4b%20player&c=apps

Audio downloads are non refundable.