Won Mm A De ANR7000 ANR AVIATION HEADSET OPERATION This Active Noise Reduction Pilot Headset is a headset that can isolate, offset and cane! background noise. In comparison with conventional passive headsets, it can, under noisy circumstances, provide a quipster more comfortable and less fatiguing environment by reducing background noises. This makes it possible to improve telecommunication quality, improving safely and flying enjoyment.