The Sony WF-1000XM4 noise-canceling earbuds are a significant improvement over the WF-1000XM3, with a smaller shape, better ANC, and tons of features.
Sony WF-1000XM4 review: Sony's best wireless earbuds
Sony WF-1000XM4 review – Pickr
Sony WF-1000XM4 review - SoundGuys
Sony WF-1000XM4 long-term review: Getting even better with updates
Sony WF-1000XM4 long-term review: Getting even better with updates
Sony WF-1000XM4 Review: Silence Is Golden - SlashGear
Audiophiles should not suffer! Sony WF-1000xm4: the review – Well balanced and spot on
Sony WF-1000XM4 Review: The Best Flagship TWS?
Sony WF-1000XM4 Review: The Audiophile's Perspective – In-Ear Fidelity
Sony WF-1000XM4 review – Pickr
Sony WF-1000XM4 Review: Smaller, Better in Almost Every Way
Sony WF-1000XM4 Earbuds Review: the Best Wireless Earbuds You Can Buy