Dual noise sensor technology, featuring two microphones on each earcup, captures ambient noise and passes the data to the HD Noise Cancelling Processor QN1. To maximise noise cancelling performance, the WH-1000XM4 headphones incorporate two technologies: Personal Noise Cancelling Optimiser, designed specifically for you, and Atmospheric Pressure Optimising, designed specifically for air travel.
Review: Sony's flagship noise-canceling headphones just got even better
WH-1000XM4 Wireless Noise Cancelling Headphones (Silent White)
Sony WH-1000XM5 vs WH-1000XM4: What's new and what's different?
Sony WH-1000XM4 review: Bose-beating noise cancelling headphones, Headphones
Buy Sony WH-1000XM4 Over-Ear Wireless NC Headphones - Black, Wireless headphones
Sony WH-1000XM5 wireless headphones review: outstanding sonics and ANC
Sony WH-1000XM4 wireless noise-canceling headphones review - news
Sony WH-1000XM4 Wireless Premium Noise Canceling Overhead Headphones w – WAFUU JAPAN
Sony WH-1000XM4 True Wireless Over-Ear Bluetooth Headphones
WH-1000XM4 Wireless Noise Cancelling Headphones (Silver)