That appears to be a "noise canceling" microphone adapter. It doesn't even claim to offer headphone noise canceling, it's just for microphones. There are two do

That appears to be a "noise canceling" microphone adapter. It doesn't even claim to offer headphone noise canceling, it's just for microphones. There are two dots that might possibly be microphones for active noise cancellation, but I suspect that they would be too far away from your face to be effective. Most likely there is just a DSP inside that tries to filter out background noise heuristically.