In an interview with Brian Tong on the Apple Blitz XL podcast, Apple VP of sensing and connectivity Ron Huang explains that while the second-gen AirPods Pro earbuds also have the H2 chip just like its new USB-C model, the new ones are capable of communicating at 5GHz instead of just 2GHz.

He says that’s why the new USB-C AirPods Pro earbuds have enough bandwidth to do lossless audio wirelessly when combined with the upcoming Vision Pro.

Apple:

The H2 chip in the latest AirPods Pro and Apple Vision Pro, combined with a groundbreaking wireless audio protocol, unlocks powerful 20-bit, 48 kHz Lossless Audio with a massive reduction in audio latency