How to work of restaurant calling system 
	When the guest need any service, they can press the call button on the table, the table number will be showed on the RECEIVER of watch or display screen with clear “dingdong” sound or vibration, then the waiter could offer service very timely.
	 
 
	
	
	Specification of wireless call button 
	4 keys call buton: CALL, BILL, DRINK, CANCEL                               
Signal Distance: 200M in open area     
Material: PC  
Dimension: 67*59*19mm   
Color: orange
	With a 12V 23A battery
	 
	 
	 
 
	Table call button need work with wireless receiver 
	
 
	 
 
	