FARBIN 12V 150db Air Horn kit, Super Loud 18 Inches Chrome Zinc Single Trumpet Truck Air Horn with Compressor and Wire harness for Any 12V Vehicles (12V, Single air horn)

Name: FARBIN Single Air Horn Color: Silver Sound Level: 150DB Voltage: 12V / 24V Current: 15A/7.5A Package Weight: 1250g Material: High quality Chrome plated ZINC trumpets(non-rusting) Applicable: 12V for Car / Truck / Jeep / Pickup / RV / SUV / MPV / Van/ Motorcycle 24V for Train / Big truck / Buse / School Buse / Boat /Lorry / Tractor Model: Includes single air horn + screw / nut / pad/ bracket+air pump +air hose + relay + harness+fuse + wiring instructions Several common wiring errors: 1. After connecting the line, press the horn button,if the horn will not sound, and the relay will not clatter, which means that the blue line and the white line are wrongly connected. They should be connected to the power supply of the original car respectively. They can connect the horn line of the original car or the battery. 2. The air pump makes a whine sound but the horn doesn't sound, which means that the positive and negative terminals under the air pump are connected reversely. The yellow wire should be inserted into the positive pole and the black wire into the negative pole. 3. The sound of the horn is not stable, and sometimes it will break. That?s because there is paint on the frame where the black wire is grounded, which affects the normal power on of the negative pole. As long as it is connected to a good power on position, it is OK. If you have any installation and wiring problems, you can contact us at any time, and we will serve you until you are satisfied! Thank you very much for your support of FARBIN products!