TECHNICAL SPECS : Voltage:12 V, Frequency:420/500 Hz, Sound Level:105-118 dB ,Dia:80mm Produces same CRETA type tone for your vehicle. EASE OF INSTALLATION : It is super easy to install and it enhances the audio capacity of the car horn to a much greated extent making it audible to vehicles around your vehicle on the road VEHICLE COMPATIBILITY : Applicable for all 2/4 wheelers which primarily inlude all kinds of bikes, scooty, passenger cars, SUVs and commercial vehicles TRUSTWORTHY : The horn offeres pretty much high reliability in terms of performance. All of this is at a very attractive and competitive pricing as compared to the market MOUNTING INSTRUCTION : Mount horns on sturdy part,facing forward to enable propagation of sound in the direction of travel.Avoid fitment in concealed positions/behind vehicle parts