There should be a jack on the back or side of the laptop that is either a 'line out' or headphones. The 'line out' jack is best but it is not amped. You speaker kit should have an amp, that is, be powered. If you plug it in the wall, it's powered. The headphone jack will work too. Plug the audio (usually colorcoded green) plug from the Logitech speaker kit into one of the laptop audio jacks and make sure the volume is turned up on the taskbar volume icon.