A terminal device includes a reception unit configured to receive first and second electromagnetic waves and first and second sound waves; and a processor configured to determine first and second frequencies respectively indicating transmission frequencies of the first and second sound waves based on the first and second electromagnetic waves, and determine first and second beacons from which the first and second sound waves are transmitted, based on the determined first and second frequencies, wherein the processor determines a location of the terminal device based on the determined first and second beacons.