This is a set of the lightening wired headphones. It worked on the XSMax though at times it said, "Accessory connected" and sometimes acted like it had a short. FYI, the same thing happened with the charging cable, so it's likely not the headset. The 14 Pro Max does not acknowledge this headset at all; the audio is never routed to it. It's as if it does nothing. The port works because the phone charges. Ideas? Thank you.