https://wccftech.com/sony-wf-1000xm4-are-premium-wireless-earbuds-with-anc-and-top-of-the-line-features/

Sony Electronics' new WF-1000XM4, shown with case

Sony has finally gone ahead and unveiled the WF-1000XM4; these truly wireless earbuds are the latest from Sony. The WF-1000XM4 from Sony serves as a direct successor to the WF-1000XM3 released almost 2 years ago, and almost all of us regarded those as the best truly wireless earbuds with active noise cancellation. Today, the WF-1000XM4 are released, and they are built largely on the DNA found in their over-ear headphones that are the WH-1000XM4.