Did you know that browsers receive key events from those USB volume controls? Me neither!<p>A TV streaming website had always been bugging me because of its weird behavior whenever I changed the system volume: Sometimes it would become really loud instantly, sometimes it went mute before the rest of the system. When I found out that their player code was reacting to the volume knob I thought this was a) surprising (that the browser can see the system volume knob at all), and b) stupid (to react on those events) – stupid enough to make a game out of it: <a href="https://heckmeck.de/blog/volume-control-from-hell/" rel="nofollow">https://heckmeck.de/blog/volume-control-from-hell/</a>