Shenzhen Qianhai Wisesun Intelligent Technology Co., Ltd.(Wisesun) is a high-tech company mainly engaged in the research and development of integrated circuit chips, program development and sales of related products in the field of RF and MCU and other Internet of Things. The main products include SUB-1G field 315MHz/433MHz band receiver and transmitter chips, contactless NFC card reader chips, Bluetooth BLE SOC chips, WIFI SOC chips, general 8/32-bit MCU chips and other IoT core components. It enjoys a high market share and popularity in the fields of home appliances, smart home, IoT, smart wear, etc. It is one of the few semiconductor original manufacturers with the largest sales volume in the field of RF connectivity devices, etc.