Augeny 2 PCS Car Deer Whistles, Auto Deer Warning Whistle with Extra Tapes, Deer Whistles Warning Devices Horn Sensor for Forest Driving to Avoid Collision, Car Accessories (Style B, Black)

I have personally used many of these deer whistles on multiple vehicles. These just came in a little plastic bag with no instructions. They wobble and feel very cheap. Do they work? That’s hard to tell. So far we have not hit any deer with them on, but we haven’t hit any deer with them off either. Compared to the other ones I bought in the past, these seem like a much lower quality. I would not purchase these again.

I like these, they are small, so they easily fit in the grill. I also like the larger than normal air intake. There are plenty of deer in my area, so far I have had no encounters with deer.