The system works perfectly, without the participation of any computer. The module is easily programmable for 32 commands and 26 built-in commands, the setting can be done in 4 languages.
Voice recognition works just fine. He conducted an interesting experiment: every time he went about a meter somewhere and came to the conclusion that he catches normally and clearly, and works without any errors at a distance of 5 meters from the microphone position.
I also tried to make, on the basis of this module, a homemade light switch and I liked the result, everything turned out quickly and without problems.
Cost: ~ 109