ZAGG Coda Forte - Manual (Page 5)

Functionality
Up Button
Move backward 1 track - Press once
Turn up volume - Hold down to desired volume
Down Button
Move forward 1 track - Press once
Turn down volume - Hold down to desired volume
LED
Charging - Solid red
Fully charged - Off
Pairing Mode - Alternating red and blue
Normal Mode - Slow blinking blue