... ,Waiting List Management,Nurse Paging System,Doctor Paging System,Nurse Call, restaurant guest paging system Y-A3-WO Guest Paging ... power:<20mW size: ø60x17mm ApplicationsWireless calling system can be used in restaurants, hotels, hospitals, tea house, coffee shops, health clubs, ... quickly. What are the benefits of Wireless Calling System?Reduce Staff Costs Enhance the Dining Experience Greater Front ...