A:AnswerUnfortunately the chat/audio mix wheel on the headset does not work on PS4. You have to go into your party settings on the PS4 to change the chat/audio mix.
A:AnswerIf you mean side tone, yes and it’s really good. Through the drivers you can change the level of side tone. I don’t know for sure if this is the same thing your talking about sorry if it’s not.
A:AnswerI’ve had them for a couple weeks but if you take care of the battery and don’t over charge it they should be fine and you should be able to open up the headphones they are put together