2025-08-06 00:00:00 Hi Masstel App is an application for managing Masstel's positioning devices (watches, positioning phones, etc.). By linking the positioning device to the Hi Masstel App, you can grasp the child's exact location, allowing the child to talk and chat with parents and friends, play games, etc. Main functions: [Location] Locate the child's location at any time; [Electronic fence] Set up an electronic fence to receive alerts when the child enters or leaves the designated area.