Sony WF1000XM4 Specification Sheet

Industry-leading noise canceling1 with new Integrated Processor V1
Exceptional sound quality with new Integrated Processor V1 and supporting LDAC codec.
Crystal-clear call quality, beamforming microphone and a bone-conduction sensor provide clear
voice detection even in noisy environments
Speak-to-chat technology automatically reduces volume during conversations
8 hours long battery with Noise Canceling

IPX42 Water resistance
Easy wireless charging with Qi technology

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“Sony | Headphones Connect” App for Android /iOS
Ergonomic surface design for a better fit

Stable Bluetooth connection

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WF1000XM4/B

WF-1000XM4 Industry Leading Noise Canceling Truly
Wireless Earbuds

Take the next step in truly wireless noise canceling performance and
exceptional sound quality. The new Integrated Processor V1 delivers
unmatched performance while using even less power. Adding in drastically

enhanced call quality, IPX4 water resistance, and up to 24 hours of battery life

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with wireless charging, the WF-1000XM4 Truly Wireless Earbuds are unlike any
other before them.

Bullets

Features

Industry-leading Digital Noise Cancellation

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Everything in the WF-1000XM4 headphones has been redesigned from the ground up. Like our
new Integrated Processor V1, specially developed by Sony, that cancels more noise than ever, a
new driver with more performance, newly designed noise sensing microphones, and innovative
Noise Isolation Earbud Tips with a more stable fit

Integrated Processor V1

Specially developed by Sony, our new Integrated Processor V1 takes the noise canceling
performance of our acclaimed QN1e chip and goes even further. Improved noise canceling
performance and Bluetooth ‘System on Chip’ technology delivers the industry’s highest level of
noise canceling yet uses less power.

High-performance dual-noise-sensor microphones

Two noise sensing microphones per earbuds – one forward-facing and one backward-facing –
catch more ambient sound around you. This means more stable noise canceling and less
distortion at any volume.

New 6 mm driver unit

A newly designed 6 mm driver unit, featuring a 20% increase in magnet volume, gives you
improved performance in low frequencies. It also enhances noise canceling by generating a high­precision cancellation signal to the low frequency range.

Noise Isolation Earbud Tips

Newly developed Noise Isolation Earbud Tips feature a unique polyurethane foam material. Soft
and elastic, it maximizes the surface contact area between the earbud tip and the ear canal,
eliminating gaps to insulate sound and reduce noise. It also improves adhesion to the ear canal
for a more stable fit, making the WF-1000XM4 headphones easy to wear.

Minimizing wind noise

Even on windy days, you’ll stay totally immersed. Automatic Wind Noise Reduction mode detects
when it’s windy and automatically suppresses wind noise for more effective noise canceling.

Exceptional sound quality

The WF-1000XM4 support High-Resolution Audio Wireless. Thanks to specially designed 6mm
drivers, they reproduce a dynamic sound despite their small size, and the high compliance
diaphragm reproduces a rich bass range. The Integrated Processor V1 also enhances sound
quality and reduces distortion and enables LDAC codec processing and DSEE Extreme.

Enjoy High-Resolution Audio without wires

The WF-1000XM4 support High-Resolution Audio Wireless3, thanks to LDAC, our industry­adopted audio coding technology. 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.

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Real-time restoration of all your compressed files

Using Edge-AI (Artificial Intelligence), 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.

Beamforming microphones pick up every word

Beamforming microphones are calibrated to only pick up sounds from your mouth. With an
improved signal-to-noise ratio they’ll catch every word, even when there’s a lot of noise around
you.

Detects speech vibrations to enhance clarity

A bone-conduction sensor picks up vibrations from your voice without registering ambient sound,
enabling even clearer speech when making calls.

Smarter talking, smarter listening

As soon as you speak to someone, Speak-to-Chat automatically pauses the music and lets in
ambient sound so you can conduct a conversation7 – handy if you want to keep your