, practical, , all the advantages you wish to have in the speaker can be reflected in this car air horn. The excellent manufacturing process makes the speaker look smooth and the sound has strong penetrating power. This horn is suitable for both car and motorcycles. Features -Color: Black Red. -Material: Magnet, Iron, ABS. -Size: About 9.00X9.00X5.00cm/3.54X3.54X1.97in. -Voltage: 12V -Volume level: 60 -Frequency: 410Hz (low pitch) / 510Hz (high pitch - The design of the treble makes it have a strong penetrating power and can play a good reminder function - The unique snail box shape design of the horn is more conducive to sound production - This horn is very practical, suitable for trucks, car, motorcycles, etc - The magnet, iron and ABS material is safe, durable and will not be easily - Train horn suitable for truck, provides the loudest sound on the market and is also the most compact train horn available Package list: 1 pair air horns 1 pair x mounting brackets