The 4 Trumpet Competition Series Chrome Train Horn is a powerful and practical addition to any vehicle. With a sound output of approximately 155 decibels, this super loud train horn ensures you'll be heard on the road. It comes with a 12-volt heavy-duty electric solenoid and can handle up to 150 PSI. Sold individually, this horn fits most makes and models, making it a versatile choice for any vehicle owner. Upgrade your vehicle's sound and safety with this reliable and attention-grabbing train horn.