An audiometer is provided which has: a main body section； and multiple sets of a headphone section and a response operation section, wherein the main body section performs wireless communication with the headphone section and performs wireless communication with the response operation section independently of the wireless communication with the headphone section, thereby supplying a test sound output command to the headphone section to cause the headphone section to output the test sound and receiving information on operation by a subject from the response operation section, and performs the wireless communication with the headphone section and the response operation section of each set by a time-division multiplexing system.本發明提供一種聽力計，其包括主體部以及多個組的耳機部和回應操作部，所述主體部與所述耳機部進行無線通訊，並且與和所述耳機部的所述無線通訊獨立地與所述回應操作部進行無線通訊，將檢查音輸出指令向所述耳機部提供，使所述耳機部輸出檢查音，並且從所述回應操作部取得受檢者的操作資訊，所述主體部通過時分複用方式，與所述多個組的各個所述耳機部和所述回應操作部進行所述無線通訊。
