1PC Horn 12V 300dB Trumpet Super Loud Horn Compressor for Motorcycle Car Trumpet Speaker -- 1PC Horn 12V 300dB Trumpet Super Loud Horn Compressor for Motorcycle Car Trumpet Speaker Due to its structure, the horn will vibrate through the resonance box, and the same power will increase its sound, transmit it further and save electricity. Its louder and fuller sound will surely make your car look impressive. Made of fine quality metal inside and ABS coated surface for long lasting finish, strong corrosion resistance, durable and waterproof. Metal horn terminal with fine em, no oxidation, stable properties and high reliability. With universal mounting brackets and screws, installation is simple. Universal fit for most 12V motorcycles, car, truck and boat. Material: Metal + ABS Color: Black + Red Size: as shown Frequency: 410Hz (low pitch) / 510Hz (high frequency) Voltage: 12V Package Content: 1PC Horn