Industry-leading Noise Cancellation- From airplane noise to people’s voices, our WH-1000XM5 wireless headphones keep out more high and mid frequency sounds than ever and with Auto NC Optimizer, noise canceling is automatically optimized based on your wearing conditions and environment. Multi Noise Sensor technology- With 8 total microphones, these headphone are our biggest step forward in noise canceling technology. Ambient sound is captured even more accurately for a dramatic reduction in high frequency noise. Thanks to Auto NC Optimizer, noise canceling performance is always and automatically optimized based on wearing conditions and external environmental factors such as atmospheric pressure.