Jan 04, 2022 · The XM4 can connect to two devices at once, too, which is one more than the XM3. With a 30-hour battery life, a clever andfortable design, Sony's class-leading noise-cancelling and a dynamic sound, the XM4, which picked up a What Hi-Fi Award 2021, are worth the extra outlay. Read the full Sony WH-1000XM4 review. (Image credit: Sony) 2.
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