Add an extra layer of awareness for wildlife encounters with this Ultrasonic Animal Alert Device for trucks. This black ultrasonic deer alert whistle is designed to warn wildlife away and uses sound that animals can hear. The device mounts easily with included double-sided self-adhesive tape, making it a convenient option for heavy-duty trucks and other applications. Sold as a pair, these plastic/poly animal alerts are intended for drivers who regularly travel through areas where deer and other wildlife may be present. This aftermarket, non-OEM product includes a warranty against defects in workmanship and materials from the date of purchase. This item is a special-order product and is non-returnable or cancelable, so confirm your application before ordering.