Why do I hear hissing sound from my laptop through my eaphones?

Theoremsssss
Theoremsssss Member Posts: 1 New User
It sounds like a fan, but it is denitely not the fan. Sometimes it sounds like bubble popping on my ears. I'm using IEM by the way. It's just that it bothers me a lot. I don't know what wrong with this, are you guys familiar with this? 

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