This device provides a call function with a transmission range of 10 meters, enabling quick, nearby communication. It is designed for straightforward use in small area environments where fast coordination is beneficial. Key specifications Transmission range: 10 meters Function: call function Benefits Enables quick communication between nearby users within a 10 meter radius Supports fast coordination and response times in small area environments Simple to operate with a dedicated call feature Use scenarios 1) Office floor: team members can quickly reach each other to discuss a quick update or coordinate a task without leaving their desks. 2) Retail store: staff can summon a colleague to assist a customer or to restock a display within the same area. 3) Workshop or classroom: instructor can call on a student or answer a nearby question during a session, keeping the line of communication close and efficient.