Amazon is telling owners of its wireless Echo Bud earphones to update their software.
It said in email to customers Wednesday that in "very rare cases" the headphones can overheat while charging.
“We recently determined that in very rare cases it is possible for Echo Buds to overheat while in the charging case. Out of an abundance of caution, we released an over-the-air software update that addresses this potential issue,” an Amazon spokesperson told CNBC.
A software update addresses the potential safety risk and improves the long-term performance of the Echo Bud batteries.
Right now, Echo Buds are out of stock until Aug. 15 according to Amazon.com.
