Wireless call system is widely used in service areas of restaurants, hotels, cafés, bars, casinos, hospital and so on. It consists of call button for guest use and signal receiver(s) for waiters.  When the guest needs any service, they can press the button on the table, the table number will be showed on the RECEIVER or watch or display screen with clear “dingdong” sound or vibration. So the waiters could offer service very timely. Specifications 3 keys: Call; Bill; Cancel                    ...