It indicates that the earbuds have restarted unexpectedly. To resolve this, perform a factory reset on the earbuds: Place both earbuds into the charging case and keep the case open. Hold and press the function button for 10 seconds until the indicator lights up. The indicator will blink in white to indicate the reset is complete. After resetting, please re-pair the earbuds with your device. Additionally, this issue has been addressed in the latest software update. Please ensure you update to the latest version via the Xiaomi Earbuds APP to improve your experience.