1. waterproof silicone for simple call button 2. 3 digits number queue display 3. Clear prompting sound 4. EU, AU, UK, US power plug
2 digits number queue display CE certification for queue management system clear prompting sound
How wireless queue number system work : give a numeric serial number within 999 to the customers, when order is ready just press the number you want to call, the wireless display will voice accompanied by number display on the screen, easy to alert the guests their food is ready, user friendly operation.