Topic: Strange DS4 v2 Audio Problem

Hi everyone, newbie here
I will try to keep this as simple as possible. I have 2 working perfect DS4 controllers and a working perfectly set of headphone with integrated mic. My PS4 detects my headset on both controllers, I can hear myself when setting mic volume on both controllers, and all settings are correct on my PS4 for parties and in game play. However, I can hear everything when connected to both controllers, but my friends can only hear me on one of them. I’m completely stumped, has anyone any idea what’s going on!?

Thanks everyone.