Apple released the Headphone Motion API in iOS 14, which provides access to head tracking data from compatible headphones like AirPods Pro.

Headphone Motion plugin exposes this API in Unity. Use this to get head tracking data from Apple headphones like AirPods Pro into your Unity scenes.

What would I use this for?
Here are some possible uses for head tracking data:

• Audio listener rotation for spatial audio applications
• Avatar head movements
• Natural gesture interactions (nod for yes)
• Fitness tracking applications

Plugin Features

• Checks if the headphone motion API is available on a given device
• Exposes headphone connection and disconnection events
• Exposes head pose rotation data from compatible headphones

* Please note that Apple's Head Motion API only provides rotational data (3dof), but no positional data.

Documentation | Developer website