The Steps to disable the Auto Head Detection feature are –
1- Check the connectivity of your Airpods Max headphones with your iPhone or iPad.
2- After ensuring that go to the Settings app on your iPhone or iPad.
3- There you will find the ‘Bluetooth option’, click on the info icon that is right next to the connected device’s name.
4- After doing that, you will get the option of ‘Automatic Head Detection’.
This is the final stage, here you will have to select the turn off option or slide the bar to “off”.