The Bluetooth worked really well. I’m going to tack it down, but it probably wouldn’t bother most people, I’m kinda sensitive. Could never go back to squatting with this! So like a lot of people mine came mixed together but I already half expected it. Go get yours! A bit heavy ( didnt expect that either) I But thats because the quality is so good and well made. She used them for running and was able to run in the rain with no problem as well. The issue could just be because I have a Range Rover, and lets just say I didnt buy the car for its stellar electrical system. This mouse was great for about 4 months. They’re basically foam therefore easy to damage & the print/coloring on them isn’t always all the way through meaning it wears off over time (mostly on the lower section) leaving part of the shoe white.