
Avoid Deer Collisions Instantly with Automatic Dual-Structure Whistles
Secure your drive through rural forest highways. This compact device relies purely on vehicle movement to emit animal-warning ultrasonic frequencies up to a quarter-mile away.


Dual-Frequency Animal Repellent
When driving speeds exceed 35 miles per hour (56 km/h), the passing air automatically triggers the whistles to emit sonic and ultrasonic sound waves. This harmless frequency alerts deer, elk, antelope, and other wildlife up to 1/4 mile away, discouraging them from wandering onto the road.

Simple 2-Step Tape Installation
No complex tools, batteries, or wiring required. Simply clean and dry your car's exterior surface, peel off the protective red backing layer of the waterproof self-adhesive pad, and press the device firmly for 30 seconds. Mounts perfectly onto your vehicle's bumper, grille, or side mirror base.

Universally Compatible and Weatherproof
Constructed from weather-resistant ABS plastic, this warning whistle withstands heavy rain, scorching heat, and freezing temperatures. Its sleek, micro-sized design makes it ideal for cars, SUVs, trucks, motorcycles, ATVs, and other vehicles without disrupting exterior styling.
Specifications
| Material | ABS Plastic (waterproof and durable) |
| Dimensions | 2 × 1.6 × 0.87 inches (5 × 4 × 2.2 cm) |
| Base Mounting Length | 1 inch (2.6 cm) |
| Working Principle | Physical wind power generation (No batteries, wires, or electricity needed) |
| Activation Speed | 35+ miles per hour (56+ km/h) |
| Alert Range | Up to 1/4 mile (approx. 400 meters) |
| Pack Options | 2/4/6 whistles per pack (including adhesive backing pads) |
| Compatibility | Cars, SUVs, trucks, motorcycles, ATVs, and more |
Frequently Asked Questions
Q: How does the wind-powered whistle work?
A: The device requires no electricity. When your vehicle travels at 35 mph or faster, oncoming wind flows through the hollow whistles, naturally generating sound waves and ultrasonic signals that warn deer and other animals of your approach.
Q: Can people or pets inside the vehicle hear the whistle?
A: No. The sonic waves generated by the air passage are designed to target outdoor wildlife and are almost entirely inaudible to human passengers and household pets inside the closed vehicle cabin.
Q: Where is the best location to install the device on my vehicle?
A: You can mount the whistles onto the front bumper, the grille, the base of side mirrors, or any other flat surface on your vehicle. Ensure the front perforated air intake holes face directly forward into the oncoming wind.