Specification Sheet

The WH-1000XM4 over ear headphones incorporate two technologies to maximize noise
cancelling performance. Unique Atmospheric Pressure Optimizing delivers optimal sound at high
altitude while Personal Noise Cancellation Optimizer analyses unique sonic characteristics
caused by head size, glasses, and hair, then tailors sound to you.
Ambient Sound Control
Adjust ambient sound with the Sony | Headphones Connect app to cancel noise while still
allowing through essential sounds, like transport announcements, when you’re listening on the
move.
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Proprietary technology for premium sound
LDAC transmits approximately three times more data (at the maximum transfer rate of 990 kbps)
than conventional BLUETOOTH
®
audio, allowing you to enjoy High-Resolution Audio content in
exceptional quality, as close as possible to that of a dedicated wired connection. Powered by
DSEE Extreme technology, the 40mm drivers with Liquid Crystal Polymer (LCP) diaphragms are
Hi-Res Audio Compatible, reproducing a full range of frequencies up to 40kHz. QN1 does 32bit
audio signal processing in portions critical for sound quality. Additionally, the digital-to-analog
converter and headphone amplifier integrated into QN1 realizes the best-in-class signal-to-noise
ratio and low distortion for portable devices.
Real-time restoration of all your compressed files
Using Edge-AI (Artificial Intelligence) co-developed with Sony Music Studios Tokyo, DSEE
Extreme™ (Digital Sound Enhancement Engine) upscales compressed digital music files in real
time. Dynamically recognizing instrumentation, musical genres, and individual elements of each
song, such as vocals or interludes, it restores the high-range sound lost in compression for a
richer, more complete listening experience.
All-day power with quick charging
The WH-1000XM4 headphones are made to last all day and then some, whether you’re focused
on your work or flying around the globe. Up to 30 hours of battery life
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on a single charge keeps
you listening instead of charging. Low on battery? No problem – 10 minutes of charge time gives
you an amazing up to 5 hours of playback.
Quick Attention Mode
These Sony headphones allow you to communicate without taking your headphones off. Place
your hand over the right ear cup to turn the volume down and deactivate noise canceling for
instant conversation.
Touch Control
Change the track, turn the volume up or down, activate your phone’s voice assistant, and take or
make calls by tapping or swiping the panel with your fingertip.
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Speak-to-chat
As soon as you speak to someone, Speak-to-Chat automatically stops the music and lets in