An electronic device and an audio system comprising the electronic device are disclosed. The electronic device comprises: a microphone; a communicator performing communication with an external electronic device, and a processor configured to, based on receiving, via the microphone, an audio signal generated in a surroundings of the microphone and an audio signal of an inaudible frequency band which the external electronic device outputs through a speaker connected to the external electronic device, remove audio signals of remaining frequency bands except for the inaudible frequency band from the received audio signals and control the communicator to transmit an audio signal of the inaudible frequency band to the external electronic device.