I also tested the charge rates with my Axon 7 (which won't allow for audio with this thing, but does allow charging), and it *seems* that this charger works at about 0.5 amps only but at least it will allow for GPS/music, etc.
I'm not an expert on audio but it sounds the same as with the standard included dongle, and the charging seems to work fine too but I think it's limited to 500mA perhaps as a USB-C limitation. I'm shocked to say this thing works perfectly in my Mi Mix 2.
Hey everyone, I took a leap of faith and bought the following product from 's about $10: