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Hi Coldturkey, Thank you so much for your interest in our newest Industry Leading Noise Canceling Overhead Headphones WH1000XM4! There have been some great upgrades to the WH1000XM4 from the WH1000XM3. The WH1000XM4 utilizes DSEE Extreme (Digital Sound Enhancement Engine) which upscales compressed digital music files in real-time. Dynamically recognizing the 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. Also, the WH1000XM4 features smart listening technology to enhance your listening. With this, you can simply start speaking to automatically pause your music in Speak-to-Chat, or enjoy adaptive playback thanks to the proximity sensor and two acceleration sensors that detect whether your headphones are being worn or not. Finally, we also gently adjusted the design of the headphones. We added more cushioning to the headband and ear padding. We also changed the outside dimensions of the headphones slightly so they sit more comfortably over your head. For more information about the headphones, you may refer to this link: https://www.sony.com/electronics/headband-headphones/wh-1000xm4 Hope this helps, ~Ralph
Sorry, there was a problem. Please try again later.So I compared my XM4 with my friend's XM3 and honestly, I could not make out any difference. Even NC was the same. To be fair, I could have compared them with a variety of background noises.
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