Review on 🦌 Awpeye Deer Whistles for Car: 8 Packs of Ultrasonic & Wind Whistle Deer Warning Devices for Vehicles & Motorcycles by David Encarnacion

I believe in reindeer whistles. I've hit 12 deer in my life and 11 of them with a car without a deer whistle. I live in the outback and you can see a herd of deer as you approach, heads held high and ears pricked. It just warns them and makes them stop the second you need to avoid them.