Sony’s latest pair of TWS buds, the WF-1000XM4, are here and improve on their predecessors across the board. Part of that is thanks to the more capable Sony V1 chip, but the buds themselves have a better construction, which enables better audio quality and improved noise cancellation. These are the first TWS buds in the wold to support Hi-Res audio over the LDAC codec (or so Sony claims). LDAC carries up to 3x the amount of data compared to typical Bluetooth audio. The DSEE Extreme feature uses AI to reconstruct compressed audio to something with “close to Hi-Res quality”. 360 Reality...
Source: https://www.gsmarena.com/sony_wf1000xm4_are_smaller_support_ldac_and_have_better_noise_cancellation-news-49513.php