The Save-A-Deer whistle is an animal alert, deer warning device that aids in accident prevention with animals. Help save human and animal lives through reduced deer and vehicle collisions.  The Save-A-Deer whistle is the smallest and best single unit air-activated animal alert /automobile deer whistle design on the market today. When mounted to a vehicle, car, truck, or motorcycle moving at 35 mph or faster, the deer whistle makes a sound that alerts deer, moose, elk, etc of the approaching vehicle and assists with accident prevention.

You should always exercise caution when driving in areas heavily populated with animals. You should examine the deer whistle occasionally to be sure it is still mounted to the vehicle and does not have any blockage in the holes.