Redesigned for exceptional fit and audio performance - and available with Active Noise Cancellation, Adaptive Audio, and Transparency mode for the first time in this design. The powerful H2 chip delivers clearer calls with Voice Isolation, the magic of Conversation Awareness, and a new, hands-free way to interact with Siri. Footnote Personalized Spatial Audio with dynamic head tracking places sound all around you. Footnote Rated IP54 dust, sweat, and water resistant. Footnote USB-C charging and up to 30 hours of listening time using the case. Footnote The charging case includes a built-in speaker for Find My to help you locate your AirPods 4. Footnote The case also supports wireless charging with an Apple Watch charger or Qi-certified wireless chargers.