The offline voice recognition solution is a voice recognition technology that does not require WIFI or APP, and directly uses the chip's local command set to control the product. It is simple and convenient to use, and can be used by the elderly and children without barriers. Specification parameter Number of command words: 300 Recognition distance: 6-10m Working voltage: 2.7V~3.6V Temperature range: -40℃~85℃ Dimensions: 25mmx32mm (PCB) Pin spacing: 1.27mm Application areas: smart lighting, smart home appliances , intelligent robots, intelligent toys, intelligent cars, can be customized.