The main downfall is that I need to turn up the volume when I take a phone call, then lower it again when I return to my music. Cherry MX Brown. My feet are flat and low volume with a medium width forefoot and narrow heel. I asked Amazon to clearly highlight the product manufacturer and country, they said below in legal words. No problems with the slats or screws or screwholes. Bought 1 for home and just bought another for work. There was no setting to do any sort of speaker test or automatic calibration but when I finally found an old DVD with the THX Optimizer, I found all of the speaker levels were absolutely perfect and didnt need to be adjusted. Also doesn?t fit AirPods Pro properly but again my mistake - it would be easy to adapt the design to have it fit all types of AirPod. Want to annoy the boomer in your world of tanks group with the audio of hentai? Well your just a bookmark click away friend. After reading the reviews I was sure I was going to get a slightly large or wide slipper.