Apple’s AirPods carry a quiet ticking timebomb that causes the earbuds to stop playing audio after a few months.

Some users had trouble hearing through the AirPods Pros, with crackling or defective active noise cancellation, when they were first released in 2019. Apple launched a free repair program for affected customers just one year after launch, offering them a free fix until the warranty expired.

Customers in Canada received the upgrade first on Reddit (via MacRumors). Apple’s page now says that the program will cover damaged AirPods Pro for three years at the bottom, instead of one year.

The program covers two distinct kinds of problems. The first is any type of crackling or static noise that becomes louder in a noisy environment, during exercise, or during phone conversations. The second is if ANC doesn’t perform as planned.

If you hear crackling noises, first make sure all of your Apple devices are up to date. It also recommends double-checking for any wireless interference and determining whether the problem is app related. If none of that fixes the problem, it’s time to take advantage of the complimentary repair service.

There are a few more things to bear in mind. To begin, your crackling buds must be eligible for the program. That implies no AirPods or AirPods Max. The AirPods Pro will also be tested to ensure that they are truly damaged, according to MacRumors.