The Sony WF-1000XM4 Truly Wireless are the next generation of the Sony WF-1000XM3 Truly Wireless. They come with many of the same features as their predecessor
Sony WF-1000XM4 review: a sonic triumph - The Verge
Sony WF-1000XM4 wireless earbuds review: entertaining and musical in-ears
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Sony WF-1000XM4 review - SoundGuys
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Sony WF-1000XM4 review: a sonic triumph - The Verge
Sony WF-1000XM4 review - SoundGuys
Sony WF-1000XM4 are remarkable BT, ANC earphones (long-term audio review) - Cybershack
Sony WF-1000XM4 review: a sonic triumph - The Verge