What is this kind of audio cable called?
That's microphone and headphone cable combined, having a TRRS 3.5mm audio jack of unspecified pinout, with 2.5mm mono audio jacks at the other end.
There's no better name for it, and your picture sadly doesn't fully specify how the microphone and two stereo channels should be connected to the TRRS, which depends on the device you plug this into.
So: &quot;headphone cable&quot;?