Universal – 12 Volt horn kit for golf cart EZGO Club Car Yamaha, UTV, Boat, ATV, Forklift etc. Package include – Complete horn kit includes horn, horn button, wiring, hardware kit Adjustable volume – the black button on backside is for volume control could adjust it when power connected. Street Legal Upgrades – Honk at other golf cart drivers just like you would in your car or truck. Easy To In Stall -Most users will bolt underneath the front cowl.in the floor as a foot button.