CD4017 Colorful Voice Control Rotating LED Light Kit Electronic Manufacturing DIY Kit Spare Parts Student Laboratory – AliExpress 502

The designer is good and interesting, but in fact it is not activated by voice, you need to either blow or yell directly into the microphone to achieve a result. A big plus for a very high quality and beautiful fee, and a minus for inconsistency with the description. Perhaps a defective microphone is caught, perhaps the ballast resistance on the transistor in the megaomes is too large and presses the trigger threshold.