USB Headphones Hyperx KHX-HSCP-RD are not working Manjaro 21.2.0 XFCE edition

Support Sound
5

PulseAudio data is not showing any USB audio devices detected, only 2 internal devices for HDMI audio and analog audio to speakers/headphone jack

I suggest you check ALSA for any errors detecting USB audio device

sudo alsa-info.sh --upload