Apple’s 16-inch MacBook Pro has a mysterious new ‘lid angle sensor’ - The Verge https://www.theverge.com/2019/11/19/20973135/apple-16-inch-macbook-pro-lid-angle-sensor
"Apple’s new 16-inch MacBook Pro not only has a bigger screen, but it returns to a scissor switch keyboard, has louder speakers, a better mic, and a... lid angle sensor?"