About this item Material - Motorcycle horn is made of high-quality metal and has a long service life. Size - Speaker diameter: 68 mm, Bracket Length: 76 mm. Voltage - The working voltage is 12V and the working current is 1.5 A. The sound output is 105 dB. Waterproof - Motorcycle horn is waterproof, do not worry about rain, good for long-term use. Wide range of use - Motorcycle horn is suitable for most scooters, mopeds, ATVs, Go-karts, Vespas, small bicycles and motorcycles.