Connecting your laptop to powered DJ speakers (also known as powered PA speakers) can give you a much richer and louder music experience than your internal speakers or headphones can. The process only requires a few parts and is relatively simple to put together.
Connect the 1/4-inch mono cables to the adaptor (stereo mini plug [1/8 inch, 3.5mm] left and right to two 1/4-inch mono jacks).
Connect the adaptor to your headphone jack.
Connect the 1/4-inch mono cables to your powered DJ speakers.