When Apple announced the launch of their pricey AirPods Max, they highlighted a new, unheard of feature: something they called “Spatial Audio”. Granted, “Spatial Audio” is a term made up by Apple to sell headphones, but it’s basically surround sound inside your headphones.
source https://lifehacker.com/how-to-use-spatial-audio-on-airpods-pro-max-1846353505