ITEM NAME:1Pair 12V 118dB Loud Dual Tone Electric Snail Air Horn Car Motorcycle Truck New Pair 12V 118dB Universal Chrome Dual Tone Air Snail Horn For Car Van Motorcycle Specifications: Color:Chrome Material: Plastic and Metal Frequency: 410-510 Hz Voltage: 12V dB: 118 dB Quantity: 1 pair Wiring Connection: one for Negative Pole and the other for Positive Pole Features: 1.Corrosion of tungsten contacts,high temperature,no oxidation,good contact 2.Unique breathing design with snail performance,heat and strong 3.With universal mounting brackets, installation is simple 4.Universal for most motorcycles or cars. Package includes: 1 *Pair Horns.Unique breathing design with snail performance,heat and strong. Wiring Connection: one for Negative Pole and the other for Positive Pole. Frequency: 410-510 Hz.