A remotely controllable electronic device comprises an infrared receiver, a control unit and a toggle detector. The infrared receiver is for wirelessly receiving a plurality of control signals. The control unit is coupled to the infrared receiver and generates a plurality of function signals. Each function signal is corresponding to one of the control signals received by the infrared receiver. The toggle detector is coupled to the control unit and receives electricity from a power source through a switching element. The toggle detector determines the power status of the electricity coming from the switching element in a predetermined period and generates a learning mode signal to the control unit when the switching element is switched a plurality of times during the predetermined period. The remotely controllable electronic device could be control by the control signals of any infrared remote control.