I was unable to find the type of connector I will need to listen to the live audio from the NVR using standard Headphones. I do not want to use the Two-Way Audio feature, and I could not verify the type of cable needed.

One particular type of cable I found is a 2 RCA Male connectors to 3.5 mm female cable, but I am unsure if that will work. Please check the screenshot:

The NVR user manual says the following:

Please help me with the technical name of the cable required for me to use a 3.5 mm jack headphone to listen to live audio from the NVR. Also, I could not find info on the "1 inch" RCA output. Thank you.