DescriptionWith this aggressive device. Equipped with high sensitive sensor, can found animals like rabbit, deer, dogs real time and expulsion with ultrasonic and wind. Of course the ultrasonic repeller are absolutely for human. Human ultrasonic sounds, repel and keep away the intruders effectively.With motion sensor and ultrasonic wave technology, would protect yourcar from deer's damage.Features- Color: Assorted color. - Material: ABS. - Size: About 6x4x2.5cm/ 2.36x1.57x0.98 inch. - Easy to install and operate. - With this aggressive ultrasonic device. Equipped with high sensitive sensor, can found animals like rabbit, deer, dogs real time and expulsion with ultrasonic.- Of course the ultrasonic repeller are absolutely for human. - Environmental Friendly: Just scares away annoying animals, will not hurt them. No chemicals or pesticides, no dead animals. - Human ultrasonic sounds, repel and keep away the intruders effectively. With motion sensor and ultrasonic wave technology, would protect your car from deer's damage.