A measurement system includes an ear model including an artificial auricle (51) and an artificial external ear canal (53); and an air-conducted sound gauge (200) that measures air-conducted sound in the artificial external ear canal (53), and while an acoustic device (1) that includes a vibrating body and transmits sound to a user by contacting the vibrating body to a human auricle is placed in contact with the ear model (50) of the measurement system, the measurement system executes control for measurement, with the air-conducted sound gauge, of harmonics in an air-conducted component generated by a pure tone emitted by the acoustic device (1) and control to display the result of the measurement on a display.