First turn on the Bluetooth function of the phone, hold down the button on the top of the AirPods Pro 2 charging case, and wait for the indicator to blink, indicating that it has entered the pairing state.
Then locate the AirPods Pro 2 in your phone's Bluetooth menu and tap Connect.
After the connection is successful, you can adjust and control the volume, song playback, answering calls and other operations in the control center of the phone. In addition, if you're already logged in using iCloud, the AirPods Pro 2 will automatically sync with other Apple devices.