how do i connect these to my macbook pro

when i plug the harman/kardon soundsticks in to the audio socket of my macbook pro i have no sound

Harman Kardon SoundSticks III 2.1 Channel Sound System

Harman Kardon SoundSticks III 2.1 Channel Sound System

Product No Longer Available

1 Answer from the Community

  • Via headphone jack and independent power plug.