AirPods Max are wireless Bluetooth over-ear headphones designed by Apple, and released on December 15, 2020. They are Apple's highest-end option in the AirPods lineup, sold alongside the base model AirPods and mid-range AirPods Pro. From Wikipedia
After resolving a bug in iOS 18.4, Apple has made the updated firmware available, introducing lossless audio, ultra-low latency, and wired playback exclusively for USB-C AirPods Max.