You're sure to attract attention with Wolo's Musical air powered horns. These super-loud, durable plastic trumpets are powered by a heavy-duty 12 V, maintenance-free compressor. Wolo includes everything with these easy-to-install kits, so you will be out for a melodious drive in no time. With many popular tunes to choose from, you're sure to find one that will express your personality and fit your ride's style.