How to work of wireless calling system

When the guest need any service, they can press the button on the table, the table number will be showed on the RECEIVER of watch or display screen with clear “dingdong” sound or vibration. So the waiter could offer service very timely.

Specification of Number display receiver

1. With high strength aluminum alloy shell
2. Using digital code technology and the function is steady and reliable.
3. Show number from 1-50, can show 50 numbers at the same time.
4. It can work with 50 1-key or 2-key button in max
5. It can save 20 calling info in turn
6. It have a bettery inside when power outage
7. Dimension: 220*120*40mm

7 segment display need work with wireless transmitter