A wireless communication apparatus comprising: a wireless communicator capable of broadcasting, using Bluetooth, an extended advertising packet having a large transmittable capacity and a compatible advertising packet having a transmittable capacity smaller than the extended advertising packet; and a processor, wherein the wireless communicator is configured to broadcast periodically the extended advertising packet based on an instruction from the processor, the processor is configured to: (i) set offset information in an offset notification packet that is a first compatible advertising packet, wherein the offset information indicates time until transmission of the extended advertising packet from the wireless communication apparatus, (ii) broadcast periodically the offset notification packet via the wireless communicator, and (iii) broadcast, in a transmission frequency notification packet that is a second compatible advertising packet, information on a transmission frequency of the offset notification packet, wherein the information on the transmission frequency indicates a period used for periodically broadcasting the offset notification packet; wherein the offset information is set based on a transmission timing of the offset notification packet and a transmission timing of the extended advertising packet. a wireless communicator capable of broadcasting, using Bluetooth, an extended advertising packet having a large transmittable capacity and a compatible advertising packet having a transmittable capacity smaller than the extended advertising packet; and a processor, wherein the wireless communicator is configured to broadcast periodically the extended advertising packet based on an instruction from the processor, the processor is configured to: (i) set offset information in an offset notification packet that is a first compatible advertising packet, wherein the offset information indicates time until transmission of the extended advertising packet from the wireless communication apparatus, (ii) broadcast periodically the offset notification packet via the wireless communicator, and (iii) broadcast, in a transmission frequency notification packet that is a second compatible advertising packet, information on a transmission frequency of the offset notification packet, wherein the information on the transmission frequency indicates a period used for periodically broadcasting the offset notification packet; (i) set offset information in an offset notification packet that is a first compatible advertising packet, wherein the offset information indicates time until transmission of the extended advertising packet from the wireless communication apparatus, (ii) broadcast periodically the offset notification packet via the wireless communicator, and (iii) broadcast, in a transmission frequency notification packet that is a second compatible advertising packet, information on a transmission frequency of the offset notification packet, wherein the information on the transmission frequency indicates a period used for periodically broadcasting the offset notification packet; wherein the offset information is set based on a transmission timing of the offset notification packet and a transmission timing of the extended advertising packet.