Voltage:12 V, Frequency:420 Hz, Sound Level:100-118 dB ,Dia:100mm Vehicle Compatibility: Passenger cars and Commertial vehicles It is easy to install and enhances the audibility of the horn Sealed Type: Water and mud proof Always a clear and pleasant tone Mount horns on a sturdy part, facing forward to enable propagation of sound in the direction of travel Bosch single horn for your two wheeler