I recently bought a SS Arctis 9 headset and first thing it comes to my mind was "it would be nice to see exactly how many battery % left". That's why I downloaded firstly 2.5, then 2.4 version for Windows.
Application recognize headset after command "headsetcontrol.exe -b", and prints "Found SteelSeries Arctis 9!", but nothing else. It looks like it loops, so I have to break it with ctrl+c.

Headset software is of course up-to-date and it doesn't matter whether I use it wirelessly or charging via USB cable.
I downloaded WireShark so if U need any IDs, I'll gladly help