Does the HDBW3449EP-AS-NI have a microphone onboard?

[Peter vB]

Hey guys, I'm wondering if my HDBW3449EP-AS-NI has a microphone onboard?
It says in the specs it has audio 1 in/1 out, but does that mean it can record ambient sound without external gadgets?
Would it say so on the datasheet if it had a microphone?
You can see the datasheet here:

https://www.ipcam-shop.nl/media/downloads/dahua/DH-IPC-HDBW3449E-AS-NI_datasheet_20200221_docs.pdf