Apple’s AirTags have a host of privacy and security features, including notifications when an AirTag that isn’t yours (or one you have permitted) is seen traveling with you. In such a case, you can locate the offending AirTag with Precision Finding and cause it to make a beeping noise. It’s an important security feature to help prevent people from placing an AirTag on you to track your whereabouts.
A new firmware update, version 3.0.45, improves this feature by updating the sound to make it easier to locate. This only applies to the new 