Nine Microphones Total : Eight microphones for Active Noise Cancellation, Three microphones for voice pickup (two shared with Active Noise Cancellation and one additional microphone)
Chip
Apple H1 headphone chip (each ear cup)
Audio Technology
Apple-Designed Dynamic Driver, Active Noise Cancellation, Transparency Mode, Adaptive EQ, Spatial Audio with Dynamic Head Tracking1
Controls
Digital Crown, Turn for volume control, Press once to play, pause, or answer a phone call, Press twice to skip forward, Press three times to skip back, Noise control button, Press to switch between Active Noise Cancellation and Transparency mode