Featuring Apple's specially designed W1 chip, AirPods use optical sensors and a motion accelerometer to detect whether or not they are in the ear Whether you use a single AirPod or both, the W1 chip automatically routes the sound and activate the microphone And if you're on the phone or talking to Siri, another accelerometer running with beamforming microphones comes into play to filter the background noise and focus on your voice System Requirements: iPhone, iPad models and iPod
AirPods best quality choice on the market