Wireless calling device

This is a device that supports the calling of distant people and things to prevent production stoppages, such as calls for abnormal occurrences from assembly line workers, calls for relief personnel to prevent delays in the production line, calls for transport vehicles like forklifts, automated guided vehicles (AGVs), and trucks to prevent supply shortages, and calls for maintenance staff in case of AGV abnormalities. It offers a rich lineup including wireless Andon systems and wristwatch-type receivers, assisting in calls within the factory through "displays," "sounds," "vibrations," and "messages."