How to pair only one AirPod to my iPhone?

Hi jesusfrfr2736,

To ensure we understand your question correctly, are you trying to pair AirPod to your iPhone? If so, we recommend that you try the steps here: Pair AirPods Pro - Apple Support

To perform the recommended troubleshooting steps via the link above, complete the steps in the section titled "Pair AirPods Pro with iPhone, iPad, or iPod touch."

Before you begin, make sure your device has the latest version of iOS or iPadOS installed.

1. On your device, go to Settings  > Bluetooth, then turn on Bluetooth.

2. Open the case with your AirPods inside, then hold it next to your device.

3. Follow the onscreen instructions, then tap Done.

We recommend the steps above because they will show you how to pair your AirPods with your iPhone.

If you’re still experiencing the same issue, then we suggest that you try the steps in the link below.

If your AirPods won't connect - Apple Support

1. Make sure that your iPhone or iPod touch has the latest version of iOS or that your iPad has the latest version of iPadOS.

2. Put both AirPods in the charging case and make sure that both AirPods are charging.

3. To make sure that Bluetooth is on, go to Settings > Bluetooth.

4. If your AirPods are connected, make sure that they're selected as your audio device. If your AirPods appear in the list of devices but they don't connect, go to the next step.

5. Close the lid, wait 15 seconds, then open the lid. Press and hold the setup button on the back of the charging case for up to 10 seconds. The status light on the front of the charging case should flash white, which means that your AirPods are ready to connect.

Please let us know the outcome after giving the above steps a try.

Thanks for using the Apple Support Communities.

Cheers!