Exquisite breathing design with snail performance, heat and strong. Made of fine quality metal inside and ABS surface coated for a long lasting finish, strong corrosion resistance, durabl e and waterproof. Metal terminal of horn with fine contact, no oxidation, stable characteristics and high reliability. With universal mounting brackets and screws, installation is simple. Universal fit for most 12V motorcycles, car, truck and boat. Voltage: 12V Frequency: 510Hz(High Pitch) About the sound of the speaker: Because of its structure, the snail horn will vibrate through the resonance box, and the same power will increase its sound, transmit it farther, and save electricity. Its louder and fuller sound will definitely make your car look impressive. Fuller sound and longer life! Material: Metal Package Contents: 1PCS * Electric Snail Horn