Maybe it's a little strange because I'm using Google Translate.
I have a problem with my razer blackidow chroma rgb keyboard, when connecting a headphone it makes a hissing noise, but the same does not happen if the rgb is turned off, or even if it is very weak, the more intense the rgb the louder the hiss becomes and depending on the RGB style I mean if it's waves the sound also changes, as if the sound made the RGB movements, what could it be? One note, I bought it used and I'm still evaluating it.