A method for controlling a signal related to an external device and an electronic device therefor are provided. The electronic device includes a transceiver, a memory, and at least one processor. The at least one processor is configured to control to receive a broadcasted request signal for registering an external device, from the external device via the transceiver, identify whether a nonaudible frequency signal is received from the external device, and provide a message for registering the external device based on the nonaudible frequency signal being received.