Photo by Chris Welch / The Verge

Amazon has begun sending emails out to owners of its Echo Buds true wireless earbuds, cautioning those customers to update the device firmware as soon as possible to avoid a “potential safety risk.”

“We recently determined that in rare cases it’s possible for Echo Buds to overheat while in the charging case,” the email says. According to Amazon, the latest software update eliminates this issue and “improves the long-term performance of Echo Buds’ batteries.” Android Central first reported on the email.

Amazon’s email doesn’t mention whether there have been real-world overheating incidents involving the Echo Buds. I’ve asked the company whether it’s aware of any, or if this problem was discovered internally. Amazon is urging anyone who…

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