In article , Aquaman wrote:

The porblem is I don't really know where the beeping is coming from
outside my balcony its in like 4 different places. I have about 4
different complexes close to me and I have No idea who runs them.

You can make an ear funnel to make hearing highly directional. Used to
be used in WW2 before radar to detect incoming planes

Free men own guns - www(dot)geocities(dot)com/CapitolHill/5357/