The Wolf Whistle Horn is a practical and attention-grabbing accessory for any 12 Volt vehicle. With its distinct shrill and extra loud two-tone whistle sound, it effortlessly attracts attention. Measuring 4" x 4" x 4-1/2", this easy-to-install horn fits most makes and models. Sold individually, it offers a practical solution for those seeking a reliable and effective way to make their presence known on the road.