Assuming you're using Windows, you have to search for the application Device Manager. It will show you all connected devices on your system, as well as an option to modify drivers and certain options.
Answer:
DM me I have an answer set up but it won't let me here because it's "too long" hope to here back from you! (sorry about this Brainly has been acting up on me lately!!!!!)
Explanation:
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!