Having hands free to pursue other tasks is the main advantage of listening to an audio version of the King James Bible. Driving a motor vehicle, working out at the gym, and cooking a meal are all activities that would be difficult to perform while reading.
There are many sites that offer free audio files of the King James Bible for streaming or downloading. Putting these files on a portable music device enables portable listening. Listening to the King James Bible is also possible in low-light conditions in which reading might be difficult. Portable music devices are also easier to carry than a full-sized King James Bible.