Active Noise Cancellation<br />Transparency mode<br />Adaptive EQ<br />Vent system for pressure equalisation<br />Custom high-excursion Apple driver<br />Custom high dynamic range amplifier<br />Dual beamforming microphones<br />Inward-facing microphone<br />Dual optical sensors<br />Motion-detecting accelerometer<br />Speech-detecting accelerometer<br />Force sensor
