4 Pcs Deer Whistles for Vehicles, Ultrasonic & Wind Activated Deer Warning Whistles Device for Car, Deer Horn with Self-Adhesive Tape for Truck Car and Motorcycle Avoid Collision Wildlife

Reliable Material: This deer warning whistle is made of high-quality ABS plastic, which is resistant to high and low temperatures and can function even in extreme weather conditions. People or pets inside the car are not affected and cannot hear ultrasonic sounds.

Avoid collision: Ultrasonic whistles emit sound waves, while wind whistles produce sound through wind force. The two types of whistles work together to emit warning sounds. It can prevent deer, antelopes, and kangaroos from crossing the road and entering the path of vehicles, effectively avoiding collisions between animals and vehicles.

Easy to install: Firstly, remove the adhesive backing and preferably stick the whistle to the grill, front bumper, rearview mirror, or other flat areas of the vehicle. Then, make sure the big end is facing forward and the deer whistle is level with the horizon. The most reasonable location is where there is more air flow, followed by the grille and front bumper.

Wide application range: This deer warning whistle is suitable for all cars, SUV, trucks, motorcycles, ATVs, etc. Can be removed from the base and easily disassembled or quickly reinstalled when not needed. Please note: The range of the deer whistle is a quarter mile and is only effective when the vehicle is traveling at a speed of at least 35 miles per hour.

Packaging: 4 Pcs ultrasonic and wind activated deer whistles.(The sound emitted by the deer sentry post is greater than 20kHz and only affects deer. Humans cannot hear the sound of the deer sentry post and it is harmless to humans.)