Active Noise Cancellation2 AirPods 4 now offer the option for Active Noise Cancellation in this open-ear design for the very first time. Powered by the H2 chip and upgraded microphones, it helps reduce low-frequency environmental noise — like airplane engines, HVAC systems, and city traffic — before it reaches your ears. Adaptive Audio2 Blends Transparency and Active Noise Cancellation in real-time, seamlessly tailoring noise control to your changing environment as you go about your day. Transparency mode2 Provides the most natural way to hear the world around you — perfect for staying connected to your surroundings when you’re on a call or listening to music or podcasts. Conversation Awareness3 Senses when you’re speaking to someone nearby and automatically lowers the volume of what’s playing, bringing it right back as soon as you’re done.