Roamlink is the Internet of things brand of RoamWiFi, focusing on cross-border connection services for intelligent terminals. Roamlink inside platform is the original and self-developed technology of Roamlink ,it can realize networking without inserting a physical SIM card by embedding software programs in the terminal without changing and adding additional hardware costs. Provide customers with safe, reliable, stable signal, low-cost and easy to manage global data network connection services.