GAMPRO Eletric Car Horn Kit 12V 135db Super Loud High Tone and Low Tone Metal Twin Horn Kit with Bracket for Cars Trucks SUVs RVs Vans Motorcycles Off Road Boats(Red) Black Coated Metal body with a Red Protective Grille for a distinctive and stylish look Super Loud - Sound Output: 135DB - 400-335 HZ / 12V Power Source - No External Air Supply Needed Mounting Type: Single Screw - Terminal Contacts: Blade Type - Includes 2 Universal Mounting Brackets Loud and powerful Dual Supertone Horns add a level of safety to your driving with 135db(A) of sound. Twin Horns with High/Low Tones Combine to one HUGE Sound.Works on any 12 Volt Vehicle including Cars, Trucks, Vans, Motorcycles, Buses, and Boats