Steering Wheel PC -Single Trumpet Air Horn Compressor Kit 150dB 18'' Highlights Generic Brand Single Trumpet Air Horn Compressor Kit 150dB 18'' Description: Suitable for truck train of car SUV VAN Boat Motorcycle. Single air trumpet horn with sparkling black finish. 150 sound decibels, super loud. Small size but powerful volume and tuned train horn sound. Easy to install only need to simply mounted on your air compressor. Great sound quality, extremely stable frequency. Long service life, reliable working performance. Specification: Color: Chroming Material: Plastic+Iron Decibel: 150dB Voltage: 12V/24V Overall Size: Approx. 445x100x95mm/17.5x3.9x3.7inch Caliber: Approx. 95mm / 3.7inch Current: 5A Package includes: 1 piece single trumpet 2 pieces brackets 4 pieces screws two wires from the solenoid valve (no positives or negatives) The air tap on the solenoid valve is connected to the vehicle's gas source (make sure there are no air leaks)