| 摘要 |
An electromagnetic alarm device includes a current interrupter to interrupt an electricity supply to a coil on application of a self-excited voltage to oscillate a diaphragm with a moving core to generate a first alarm sound including a fundamental tone at a first predetermined frequency, when a switch is manipulated by an occupant. A proximity notification device includes an ultrasonic speaker to emit an ultrasonic wave, which is generated by implementing ultrasonic modulation on a proximity notification sound, to an outside of the vehicle for notifying a pedestrian of proximity of the vehicle, according to a traveling state of the vehicle and/or when a sensor detects a pedestrian. The ultrasonic speaker emits an ultrasonic wave, which is generated by implementing ultrasonic modulation on a second alarm sound including a fundamental tone at a second frequency, when the switch is manipulated.
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