Sony WH-1000XM4 Vs. WH-1000XM3: Which one should you buy?

Now that Sony has released the WH-1000XM4, its anticipated sequel to its awesome WH-1000XM3 wireless ANC headphones, only one question remains: What changed?

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I bought the sony wh-1000xm4 headphones, here's what I think of them.

FULAIM Boom Microphone Cable Compatible with Sony WH-1000XM4 & WH-1000XM3 Headphones with Volume Control & Mute Switch for PC, Laptop, PS4 PS5 Xbox

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