See also:

UP and DOWN buttons
Models without Hands-free system Models with Hands-free system ...

Random playback
To playback a track/file(s) at random, press the following button (random button) while the track/file is playing. *1: For type A, B and C audio, press the button for 0.5 second or longer. * ...

Category selection
Type A and B audio Type C audio To activate the category search mode, press the “PTY/CAT” button. To deactivate the category search mode, press the “PTY/CAT” button again. Type A and B audio Type ...