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Dual noise sensor technology, featuring two microphones on each earcup, captures ambient noise and passes the data to the HD Noise Cancelling Processor QN1. Using a new algorithm, the HD Noise Cancelling Processor QN1 then applies noise-cancelling processing in real time to a range of acoustic environments.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.Adjust ambient sound with the Sony | Headphones Connect app to cancel noise while still allowing essential sounds, like transport announcements, through when you're listening on the move.A built-in analogue amplifier integrated in the HD Noise Cancelling Processor QN1 realises an unmatched signal-to-noise ratio for low distortion and exceptional sound quality for portable devices.Powerful 40-mm drivers with Liquid Crystal Polymer (LCP) diaphragms make the headphones perfect for handling heavy beats and can reproduce a full range of frequencies up to 40 kHz.

Delivers deep base with clear highs and excellent vocals.Fits perfectly without causing any discomfort and can be worn for a long time.Sturdy built quality ensures that durability is never a worry.At Sony, our mission is to be a company that inspires and fulfills your curiosityUsing our unlimited passion for technology, content and services to deliver groundbreaking new excitement and entertainment, as only sony canNo other consumer electronics company today is as steeped in history and innovation as SonyThe Sony Group recognises that its businesses have direct and indirect impact on the communities in which we operateCorporate Social Responsibility is an integral part of Sony"s corporate philosophy

Frequency Response Range: 20-20000 HzActive Noise-Cancellation: YesBuilt-in Microphone: YesBattery Capacity: 55 mAh

BT 5.0 technology ensures higher data transfer speed, more stable and fast connection, and lower power consumptionTrue wireless dual-ear design, left and right earphone channels are separatedTouch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistantBuilt-in mic on both earbuds with intelligent noise reduction delivers clearer talking sound in stereo mode40mAh battery in each earbud ensures about 3 hours of music time