Mic issues Arctis Nova 5p

[Confusedaf91841]

Hi, I’m looking for any advice,

I’m not the most tech savvy person but my son wanted a pc so I bought one but having trouble with the microphone on a steel series Arctis Nova 5P,

I got it connected to Bluetooth and sound comes through the headset but when he’s playing a game he can’t seem to talk back to people,

Any pointers before I sell this for a ps5 ha,

Thanks very much.