An endoscope system includes: a processor configured to perform image processing on endoscopic image data, the processor being connectable with multiple peripherals, the processor being configured to receive an input of a first audio command; a terminal device configured to wirelessly communicate with the processor and receive an input of a second audio command; a setting circuit configured to, in a case where the processor and the terminal device can communicate with each other, make a setting such that the first audio command that is receivable by the processor and the second audio command that is receivable by the terminal device differ from each other at least partly; and a first communication controller configured to, when the first audio command or the second audio command serves as an instruction to record the endoscopic image data, transmit the endoscopic image data to the terminal device.