my left airpod always have static sound immediately after i plugged into my ear.

Hello tychen168,

If you're continuing to experience this behavior with your AirPods, check out this link: If your left or right AirPod isn't working. The steps below are a good general starting point:

"If there's no sound in one AirPod

1. Make sure that your charging case is fully charged.
2. Place both AirPods in your charging case and let them charge for 30 seconds.
3. Open the charging case near your iPhone or iPad.

1. Check the charge status on your iPhone or iPad to make sure that each AirPod is charging .

1. Put both AirPods in your ears.
2. Play audio to test both AirPods.
3. If an AirPod still isn't working, reset your AirPods or contact Apple Support."

If you follow all of those steps, including resetting the AirPods, and the issue persists, we recommend reaching out directly for support in your region. You can find support in your region here: AirPods Repair & Service - Apple Support

Regards.

Hi tychen168,

If you need anything else, don't hesitate to reach out in Apple Support Communities.

Kindest regards!