wireless queue system, VIP card reader, SMS reservation, sub-service menu, ... with LCD TV or Plasma, Specification and features:(1).System adopt Client/Server(C/S) mode and background operation ... utilize Microsoft database SQL Server 2000.(2)System adopt UNICODE encode, so it can support any country ... voltage: AC220V 50HZ / AC110V 60HZ,rated current: 0.3A wireless queue system