I have some usb headphones (Roccat Khan encase it is relevant). I can use a usb-c adapter to listen to music but I have tried plugging in two different usb-c hubs with power delivery so I could listen and charge at the same time but neither have worked. To be clear the power delivery is fine but when I plug my headphones into the hub the audio does not go out through them. Is this a limitation of the fairphone 3? If it is, does the fairphone 4 have the same limitation?
Thanks in advance,