1.Wireless Calling Service System 2Applicable places: hotels, restaurants, hospitals, cafes, factories, 3nursing homes, clubs, Wireless Calling Service System / Table Calling System / Hotel Service System:Main function:(1) The system is made up of one receiver, transmitters (HC & others just you like), one adapter, 12V 23A battery attached.802 receiver can match: HC Clear/page up/page down ...