Frienda 10 Pcs Deer Whistles For Vehicles Wind Activated Ultrasonic Deer Warning

Aazon.co: Dickno 4 PCS Deer Whistles for Car, Auto Save Deer Whistles... That's why I like this wildlife whistle, it helps to alert the animals to oncoming traffic and helps to get them out of the road. They can be... Whistle Sound Frienda 10 Pcs s For Vehicles Wind Activated Ultrasonic Deer Warning Deer Whistle Safe accessory for driver: the deer warning device is a necessary car accessory for driver who live in a wild area; The whistle produces ultrasonic frequencies and make warning sound, thereby reducing vehicle collisions The whistle produces ultrasonic frequencies and make warning sound, thereby reducing vehicle collisions Features: Usually, one ultrasonic whistle (a whistle with hole in the tail) is matched with one wind whistle (a closed-hole whistle) to dlert deer, elk, moose, antelope and kangaroos approaching vehicles. The deer whistles can attract animals' attention, when your car is moving at 30 mph or faster, the whistles can automatically emit a high-pitched noise and alert deer, elk, moose, antelope and kangaroos approaching vehicles. The frequency emitted by ultrasonic waves is 750Hz-830Hz, which is inaudible to humans or pets inside your car, as it is way out the normal hearing range of people, but wild life can hear it surely. Easy to Install and Remove: just remove the adhesive backing and apply the whistles to the grill, front bumper, rearview mirror, or any flat place of your vehicle; Make sure the bigger ends are facing the front, and the deer whistle is level with the horizon; The ideal place is where the air flows most, followed by grill, front bumper, they can be easily removed from the base when car washing is needed Aazon.co: SUJADE 4 Pack Deer Warning Whistle for Car,Deer Warning Specification: Material: ABS Color: black Package weight: 180 g/ 6., 36 oz Frequency emitted:750Hz-830Hz Package includes: 50x Deer warning devices People and pets (such as dogs, cats) in the car can't hear it, so there's no damage to your ears or health