In a wireless microphone system, a master device includes a master device control unit that generates a communication table in which a pair of a carrier wave and a slot which are used for communication with m microphone slave devices are set for one frame period, based on a total number of six carrier waves in a DECT system and n slots constituting one frame period of the DECT system, and k wireless processing units that perform communication using the DECT system with corresponding individual microphone slave devices among m microphone slave devices, based on the generated communication table. The k wireless processing units respectively operate synchronously based on the same clock signal.