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. Personalized Spatial Audio with dynamic head tracking places sound all around you. Rated IP54 dust, sweat, and water resistant. USB-C charging and up to 30 hours of listening time using the case. The charging case includes a built-in speaker for Find My to help you locate your AirPods 4. The case also supports wireless charging with an Apple Watch charger or Qi-certified wireless chargers.