What you do is (if you have windows 10) go down to your volume tab then click on it, then you click on what device you want it to come out through.
If you mean speakers. You should remove them or if you mean the speakers in the PC. Perhaps you put the headphones in the wrong one. Theres usually too one in the front and the other one in the back of the desktop.
Hope this helps.
Regards. Shaggy
Enjoy your music!
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