With Sr1 interactions, you can answer yes with a vertical head nod, or no with a horizontal head shake, when Siri asks if you want to answer an incoming call, hear a text message, manage a notification, or much more Charging case Works with USB-C connector, Apple Watch charger, or Qi-certified chargers Includes a speaker for use with Precision Finding with Proximity View Battery With Active Noise Cancellation feature AirPods 4 Up to 4 hours of listening time on a single charge with Active Noise Cancellation enabled Up to 5 hours of listening time on a single charge with Noise Control turned off Up to 4.5 hours of talk time on a single charge Connectivity Bluetooth 5.3 wireless technology Accessibility Accessibility features help people with disabilities get the most out of their new AirPods. Features include: Live Listen audio Hear levels