All About USB-C: Illegal Adapters
I have at least 2 USB C devices (a little Android-based retro game thing, and headband/headphones I use for background noise while sleeping) that do not charge off the USB C charger I use for everything else (which, is 60 watts since I want to to charge everything).Drives me crazy. Whole point of USB C is to avoid shit like that.  I'd rather shit devices still come with micro USB so at least I know they need an old charger.