When you turn on the headphones in the system unit, the speakers play and the headphones make noise (there is no connector in the speakers) (windows 10)?

Question

Headphones

help when you turn on the headphones in the system unit, then the speakers play and the headphones make noise (there is no connector in the speakers) (windows 10) (speakers Gembird SPK-405)

Answer 1

re-read what he wrote, what does it mean - then the speakers play and the headphones make noise ?
The connector in the system unit, the one behind and the one in front, are physically different 'devices', respectively, in the sound settings, you can turn their playback on and off, adjust the volume, etc.