A pair of beamforming microphones,
an inward-facing microphone
, an optical sensor for detecting the presence of the earphones in the ear
, an accelerometer, a motion detector,
an accelerometer, a speech detector,
a force sensor.

Press once to play or pause playback
Press once to answer a phone call Press
twice to skip forward content
Press three times to skip back content
Press and hold to summon Siri
Say “Hey Siri” or just “Siri” to do things like play a song, make a phone call, or get directions
with Siri Interactions Nod or shake your head when Siri asks if you want to answer an incoming call, listen to a message, manage updates, and more

30.2×18.3×18.1 mm

Product weight: about 4.3 grams