This device serves to repel wildlife using sound generated by airflow. It is activated by motion, typically when driving a car or motorcycle, where the air pressure causes the repeller's internal mechanism to resonate. It emits a high-frequency tone, often at ultrasonic levels, which is a sound with a frequency that the human ear typically cannot hear. For many species of wildlife, however, this sound is unpleasant and serves as a warning signal, alerting them to an approaching vehicle and thus helping to prevent collisions. The repeller operates entirely passively, without the need for batteries or other external power.