Yamaha claims to have drawn on decades of experience with enhancing 2-channel audio at the home-theater level to develop 3D Sound Field for its new YH-L700A headphones. It focuses on adapting to the wearer's head movements to keep sound immersion constant. The OEM also claims the new wired/wireless cans' has uniquely acute active noise cancellation (ANC) thanks to advanced mic placements.
https://www.notebookcheck.net/Yamaha-s-latest-on-ear-headphones-launch-with-ANC-and-3D-Sound-Field-technology.551203.0.html