The wireless calling receiver, which has prompt modes that play sound and display numbers on the screen, makes up the service call system with the call button.
In a restaurant or cafe, you can install the call button on the table and the display receiver on the reception desk or wall near the reception area. Guests call at the touch of a button and the staff provides service timely by numbers on the display. In addition, in healthcare facilities, a patient who needs help in a hospital bed can use the call button to have the display receiver prompt the nurse.
In short, the wireless calling receiver is popular in many places that need to wait in line for service or directly seek service.