XIAMEN CHEERZING IoT Technology Co., Ltd (“CHEERZING”) is a professional Internet of things technology solution provider focusing on the research and application of wireless communication technology (2G / 3G / 4G / 5G / Nb IOT / Lora, etc.) and positioning technology of Internet of things (GPS / BDS / lbs, etc.). The company has a number of independent intellectual property rights and core technologies. The wireless communication and positioning series modules and related software technologies independently designed and developed according to customer needs have been widely used in the rich Internet of things subdivision fields such as smart home, Internet of vehicles, intelligent meters, mobile payment, public network intercom, intelligent municipal administration, etc.