... Frequency:260~490mhz; 2.voltage:DC6V; 3.Distance:50~80m; 4.CE,Rohs omnipotent duplicating remote controller ,adjustable frequency For ... : -20 'c ~ +50'cYaoertai 4-Channel RF Wireless Remote Control Duplicator for Cars, Garage Doors , Gates doors, Alarm ... deleted.2, Duplicating (learning)Right Hands press original remote control A, and left hand press remote control duplicator A', 2 remote controls ...