Audible audio files are compatible with over 500 models of audio players, PDAs, mobile phones and streaming media devices. Devices that do not have AudibleAir capability (allowing users to download content from their library directly into their devices) require a Windows PC or Macintosh to download the files.
Additionally, titles can be played on the PC (using iTunes, Windows Media Player, or AudibleManager), streamed directly from the website, or burned to CD with AudibleManager. (The DRM generally allows a title to be burned to CD once, although the resulting CDs can be played in any CD player and have no copy prevention.)
Prospective buyers of media players can check the audible.com "Device Center" to verify whether the device will play .aa files, as well as play them at the desired level of audio fidelity. Sony Walkman players are notably incompatible at present.