What is the button on the back of airpods?

The button on the back of AirPods is called the setup button. It is used to connect your AirPods to your devices, such as an iPhone, iPad, or Mac. Pressing and holding the setup button will put your AirPods into pairing mode, allowing you to easily connect them to your device. The setup button can also be used to reset your AirPods if you are experiencing any connectivity issues.