New Feature for Pro 2 is touch control. So now u can swipe up or down to change the volume on the pods also u got 6hrs of listening time witch is a 33% increase from the first gen. And with the charging case you get 30hrs of listening time. If u loss your pods there is a speaker so u can play loud tones to find your pods. Now, with Pro 2 your can use magSafe to charge your pods. For the sensors we got dual beam-forming  microphones with inward-facing mics with skin detect sensors. Motion-detecting & speech accelerometer can hear and feel your movement better. This baby is swear proof and water resident too. The Pods Pro 2 have the new 5.3 bluetooth inside. People with disabilities get the most out of their new AirPods Pro 2 Features include: Live listening audio with headphone levels & headphone accommodations with conversion  boost. The Size of the Pods Pro 2 are: 

Height: 1.22 inches 

Width: 0.86 inch 

Depth: 0.94 inch 

Weight: 0.19 ounce 

For the Touch Control and how to use them