Software, software and more software. Mom didn't want to, dad didn't try - literally about armory crate. Nobody tested this garbage, nobody wanted it, but there is no other way to turn off the backlight (and you will want to do this, because the mouse does not live long on a single charge) and there is no other way to set the dpi you need. This craft did not work for me on 2 out of 2 computers, each installation takes 15 minutes (deletion is even longer), a bunch of some kind of tracking services from asus hang in the background. I managed to put it only on an old laptop of a friend, save dpi to the memory of the mouse, turn off the backlight, so that after a week the mouse settings were reset to default, and it blinked again, like a garland, draining the battery.
The battery holds very little, and you most likely cannot turn off the backlight, because the devil himself wrote the software.
Well, the sensor is not at all "gaming", it does not break, of course, but I do not like the accuracy, although I have no complaints about the penny g102, draw your own conclusions. And energy saving for the gaming sensor is not an excuse, they could put a normal battery, there is plenty of space in the mouse.
Terrible complete switches, died after 1 month, since I knew about the problem and bought spare ones from Kailh and Huano. Put red Kailh, and the problem is settled.