A device control system , comprising: a plurality of plug-in connectors , provided for wiring, each including an attachment plug and a plug receptacle ; and a reception device , wherein each of the plurality of plug-in connectors further includes: a sound collector configured to collect an ambient sound to generate a sound signal in form of an electric signal; a determination processor configured to determine a presence or absence of an event involving generation of a specific sound based on the sound signal; and a transmitter configured to transmit a notification signal based on a determination result by the determination processor ; characterized in that the plurality of the plug-in connectors include at least one master and at least one slave which is a remaining plug-in connector of the plurality of the plug-in connectors except for the master , the transmitter of the at least one slave is configured to transmit a determination result by a corresponding determination processor to the at least one master as the notification signal, the at least one master further includes a selector configured to select, as a selection determination result, one determination result of a determination result by the determination processor of the at least one master and the determination result by the determination processor of the at least one slave , and the transmitter of the at least one master is configured to transmit the selection determination result as the notification signal to the reception device , the reception device is configured to receive the notification signal from the transmitter of the at least one master , and control a device based on the determination result by the determination processor . a plurality of plug-in connectors , provided for wiring, each including an attachment plug and a plug receptacle ; and a reception device , wherein each of the plurality of plug-in connectors further includes: a sound collector configured to collect an ambient sound to generate a sound signal in form of an electric signal; a determination processor configured to determine a presence or absence of an event involving generation of a specific sound based on the sound signal; and a transmitter configured to transmit a notification signal based on a determination result by the determination processor ; a sound collector configured to collect an ambient sound to generate a sound signal in form of an electric signal; a determination processor configured to determine a presence or absence of an event involving generation of a specific sound based on the sound signal; and a transmitter configured to transmit a notification signal based on a determination result by the determination processor ; characterized in that the plurality of the plug-in connectors include at least one master and at least one slave which is a remaining plug-in connector of the plurality of the plug-in connectors except for the master , the transmitter of the at least one slave is configured to transmit a determination result by a corresponding determination processor to the at least one master as the notification signal, the at least one master further includes a selector configured to select, as a selection determination result, one determination result of a determination result by the determination processor of the at least one master and the determination result by the determination processor of the at least one slave , and the transmitter of the at least one master is configured to transmit the selection determination result as the notification signal to the reception device , the reception device is configured to receive the notification signal from the transmitter of the at least one master , and control a device based on the determination result by the determination processor . <EOS>