AirPods Pro are wireless Bluetooth earbuds They are Apple’s mid-range wireless headphones, sold alongside the base-level AirPods and highest-end AirPods Max. The AirPods Pro use the same chip also found in second-generation AirPods that supports hands-free “Hey Siri”. They have active noise cancellation, accomplished by microphones detecting outside sound and speakers producing precisely opposite “anti-noise”. https://www.theverge.com/2019/10/28/20936454/apple-airpods-pro-new-release-date-price-noise-cancellation-design-immersive-sound
According to Official Apple Support Center, https://support.apple.com/kb/SP811, 5 minutes in the case provides around 1 hour of listening time or around 1 hour of talk time. AirPods Pro deliver up to 4.5 hours of listening time and up to 3.5 hours of talking time on one charge which takes about 25 minutes in the case.