Created attachment 296375 [details] alsa-info.sh output Hi, We have JBL Quantum 600 wireless headphones at the company. They work (headphones and microphone) as soon as the USB stick is plugged in with Macs and Windows. With Linux (Debian testing) in USB, only the headphones work, the microphone does not work. You must use a 3.5mm audio cable jack to have the microphone. A bug report is opened on Pulseaudio: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/998 Some commentary talks about a problem with the driver. Personally, I don't know if the problem is with Pulseaudio or with the driver. Can you read the bug report for Pulseaudio and comment, please? Regards.