AirPods Pro Gen 2 - Very Quiet Two-Tone Beeping Noise

Hello everyone,

I have a question regarding my second-generation AirPods Pro. Occasionally, aside from the typical charging sound, my case emits another noise—a very quiet two-tone beep. Does anyone know anything about this? If so, is it possible to turn it off? It's quite annoying.

Thanks in advance for any help! Best regards!