The products are widely used in various fields such as mobile phones, automobiles, industry, household appliances, electric power, finance, medical care, and consumer products. Such as POS machines, mobile phones, telephones, air conditioners, refrigerators, washing machines, electricity meters, water meters, gas meters, car audio/instruments, dash cameras, smart watches, game consoles, treadmills, e - ink screens, forehead thermometers, etc.