- Essential Safety Tool: The deer whistle emits both audible sound and ultrasonic waves, effectively alerting deer, elk, moose, antelope, and kangaroos of your vehicle's approach, significantly reducing the risk of collisions. - Safe for All: This deer warning device includes 50 whistles—25 producing sound waves and 25 emitting ultrasonic waves. Both types are inaudible to humans and pets inside the car, ensuring a safe and comfortable environment without any risk of hearing damage. - Simple Installation: To install, just peel off the adhesive backing and attach the whistle to your vehicle's grille, front bumper, rearview mirror, or any flat surface. Position the larger end facing forward and ensure it is level with the horizon for optimal performance. The whistle can easily be removed when the vehicle requires washing. - Durable Design: Constructed from high-quality plastic, this animal alarm whistle is designed to withstand harsh weather conditions, making it reliable whether in extreme heat or cold. - Practical Applications: Ideal for rural drivers or those frequently traveling through wildlife-rich areas. Perfect for use on road trips, daily commutes, or while towing trailers in regions with high animal populations. - Compatibility: Suitable for all vehicle types, including cars, trucks, and SUVs. This deer whistle is a practical investment for anyone concerned about road safety in wildlife-heavy areas.