I?ve worn the PX7 while commuting in NYC and I can safely say the ANC performance of the PX7 is very effective at reducing the amount of outside noise seeping into your listening session. There was one extra each of the screws and component. Certainly approve that the Bluetooth 5. They took a bit of getting used to and I certainly dont find the controls very good or responsive, but I found that as long as I had plenty of music loaded on and just hit play/shuffle, then they worked well underwater and I didnt have any of the issues that some swimmers had reported about connections not working etc. Unfortunately, society has made us weak, and sometimes corrupt. Guess it?s time to go a little stronger with the next pressure washer but that purchase won?t be until the current one needs to be replaced. They keep charge decently but not as goodnas other earbuds i have tried. These wedges/sandals are amazingly comfortable and cushy. The instructions have a special section for the X3 with precise measurements on where to install the cross bars. I walked on wet rocks in them, a little worried that I might slip, but the shoes did a good job keeping me upright.