An MP3 player is a portable audio device that replaced tape players
like the Sony Walkman and plays computer sound files called "MP3s."
Smaller than pocket transistor radios, and about the size of a cell phone,
today's MP3 Players can hold the entire A Course In Miracles audiobook and
be played anytime and anywhere from your pillow to your pick-up truck.
They can be used with tiny headphones, with speakers that sit on a table,
or through your car stereo.
They run on batteries and have the controls such as
Play, Stop, Pause, Fast-Forward,
and
Rewind.
(or ctrl-w)