GN Netcom "batwing" microphone

The GN Netcom Voice Array Microphone, model VA-2000. It uses eight directional microphone elements, with digital signal processing to reduce background noise. It is very sensitive, but unfortunately is also very hissy and low-fidelity, and the output is only monaural. I think the little $10 GE microphone does a better job, despite being only a single omni-directional element. ... https://www.youtube.com/watch?v=6u-en5cFW00