The thing I hate the most about TWS is the static noise/waterfall hiss in the background. No matter how hard brands have tried, it's still there. It's something we can't get rid of, at least now, and hopefully we can in the near future. Rex5 are excellent, not gonna lie, but the thing holding them back is battery life. We spend too much on a pair of high-end TWS that come with a bunch of great drivers just to enjoy them for 2-3 years. Wish that brands would come up with 2-pin/MMCX/Pentaconn connectors for wired options in their next TWS models.