If your airpods went through washer high pitched noise, it’s likely that moisture has caused some internal damage. Water can affect the delicate electronics inside AirPods, and the high-pitched noise is a common symptom of such damage. Here’s what you can do:

1. Stop Using Them: Immediately stop using your AirPods to prevent further damage. Continuing to use them might cause additional issues or make repairs more difficult.

2. Dry Them Out: Gently wipe off any visible moisture and let your AirPods dry out completely. Place them in a dry area with good airflow, and avoid using heat sources like hair dryers which could cause more damage.

3. Check for Damage: Once you’re sure they’re dry, check to see if the noise persists. If you still hear a high-pitched sound or other irregularities, it might be due to internal damage from the water exposure.

4. Contact Apple Support: If the problem continues, it’s best to contact Apple Support or visit an Apple Store. They can diagnose the issue and provide repair options. Keep in mind that water damage is not covered under Apple’s standard warranty, but they might offer a replacement or repair service at a cost.

5. Prevent Future Issues: To avoid similar problems in the future, make sure to store your AirPods in a safe place away from water and other potential hazards.

Water damage is tricky because it can sometimes cause issues that don’t show up immediately. If you notice any further problems or irregularities with your AirPods after they’ve dried out, seeking professional help is the best course of action.