Feature:2PC Red Loud Compact Electric Blast Super Tone Hella Horn for CAR/TRUCK 12V D4G1.This is for a set of two (2)horns for 12V systems.These horns use a standard blade connector on the back.Rated at 118dB, these horns are nearly 7X LOUDER than a stock horn (@ 96dB)Each horn has a diameter of 123mm (4.8).Ideal for all types of vehicles.Feature of disc-style horn.High volume.Specification:Material: MetalVoltage: 12VCurrent: 4APower Consumption: 2 x 66WLoudness: 105~118dBFrequency(High Tone): 40020HZ(High)Frequency (Low Tone): 33520HZ(Low)Fitment: Universal for motorcycles, cars, trucks, etcDiameter: 123mm (4.8)Color: Black, blue, green, silver, redPackage Included:2 X Horn1 X Relay