These black Animal Repellers are designed to emit a high frequency warning noise as wind is forced through the device, giving wildlife time to get out of the way.
“I had these on my prior car and my wife's car and I noticed they also seem to work preventing collisions with insects too. I don't know whether there is any science to support that, but despite living in the Port Stephens area we hardly ever had to clean dud bugs off the windscreens. Curious that.”
