Equipped with a new integrated processor V1, 6mm driver unit and sound-isolating earplugs to further improve noise reduction performance. Our new built-in V1 processor is a specially developed processor by Sony, further improving the noise reduction performance of our award-winning QN1e chip. The upgraded noise reduction performance and Bluetooth system single-chip technology bring the highest level of noise reduction function in the industry and consume less power. Two noise-sensing microphones on each earphone (one feed-forward and one feed-back) can capture more ambient sounds from the surrounding environment, including cabin noise, city traffic, and office whispers .

Supports wireless high-resolution audio and LDAC high-quality Bluetooth encoding

WF-1000XM4 now supports wireless high-resolution audio. The specially designed 6mm driver unit in the headset is small but powerful, capable of reproducing dynamic sound effects, while the highly compliant diaphragm can reproduce a broad bass range. The built-in V1 processor also improves sound quality, reduces distortion, and supports LDAC encoding and DSEE Extreme™ functions.

Built-in beamforming microphone and bone conduction sensor improve call quality

Advanced audio signal processing technology uses beamforming microphones and bone conduction sensors to allow the WF-1000XM4 headphones to clearly and accurately identify your voice, enabling hands-free calls at home, in a coffee shop, or anywhere. Plus, the noise cancellation feature lets you hear the other party more clearly, even in noisy environments.

Beamforming microphones are calibrated to only recognize your voice. With an improved signal-to-noise ratio, the headphones can detect every word, even if there's a lot of noise around you.



The bone conduction sensor only senses vibrations from your voice, not ambient sounds, allowing you to enjoy clearer sound when making calls.

Battery life up to 8 hours (noise reduction: on) / 12 hours (noise reduction: off) [up to 24 hours (noise reduction: on) / 36 hours (noise reduction: off) with charging box), supports Qi wireless Charging technology

The WF-1000XM4 headphones allow you to enjoy up to 8 hours of listening experience, and the charging case provides an additional 16 hours of power. This means you can enjoy a 24/7 listening experience every time you go out. Need some headphones in a hurry? With just 5 minutes of quick charging, you can enjoy up to 60 minutes of playback time. WF-1000XM4 is equipped with Qi wireless charging technology, allowing you to easily charge wirelessly without being bound by cables. You can even use a Qi-enabled smartphone, such as the latest Xperia models with battery sharing capabilities, to charge the headphones and charging case.

Synchronous Bluetooth transmission between left and right earphones makes the connection more stable, corresponding to Bluetooth 5.2

The transmission algorithm of the built-in V1 processor has been optimized to make the Bluetooth connection more stable and avoid sound skipping, even in an environment with interference. It allows audio to be transmitted to both ears simultaneously while maintaining extremely low latency, and the signal strength is stronger than previous models.

product specifications

• Weight: approx. 41 grams
• Waterproof function: Yes (IPX4)
• Battery charging time: about 1.5 hours
• Battery life (continuous music playback time): up to 8 hours (noise reduction on), up to 12 hours (noise reduction off)
• Battery life (continuous communication time): up to 5.5 hours (noise reduction on), up to 6.0 hours (noise reduction off)
• Bluetooth version: Bluetooth specification version 5.2