*Earpod pro 4* *Transparency mode* Adaptive Equaliser Vent system for pressure equalisation* *Custom high-excursion Apple driver* *Custom high dynamic range amplifier* *Spatial audio with dynamic *head tracking1* *Sensors* Dual beam-forming microphones Inward-facing microphone Dual optical sensors Motion-detecting accelerometer Speech-detecting accelerometer Force sensor Chip H1-based System in Package Controls Press once to play, pause or answer a phone call Press twice to skip forward Press three times to skip back Press and hold to switch between Active Noise Cancellation and Transparency mode Say Hey Siri to do things like play a song, make a call or get directions