A:AnswerYes, there is a mix. Bought these to play Fortnite and we can talk to each other from different rooms and to other players in the game. Can be muted.
A:Answertry reconnecting them with Bluetooth or try them with the included 3.5 wire if not try restarting the ps4 if it don't work maybe bad mic on the headset exchange them
A:AnswerThey can work on any game audio that’s in the PlayStation and if you mean if the mic would work it works on all game’s that have a option to talk to others or you could make a PlayStation party and talk to others on there
A:AnswerI bought them new and the code was printed on a sheet that came with them. I don’t believe there is another way because I’m sure someone already redeemed the code from the one you bought. Sorry.