Feature super-loud disk horns. Not only do these horns looks GREAT set just behind the grill, they also provide you a tone much louder than stock to announce your presence. This is for a set of two (2)horns for 12V systems. These horns use a standard blade connector on the back. Rated at 118dB, these horns are nearly 7X LOUDER than a stock horn (@ 96dB) Each horn has a diameter of 123mm (4.8"")." Performance 12V Super Loud Grille Mount Compact Electric Blast Tone Horn Kit For universal car and moto Voltage rating:12-24V Working Current:≤4*2 Frequency:H=410±20 L=330±20 Sound Output:105-118 OD:φ130 Color:Red Fitment: Universal Fit For Most Cars, Vans, Trucks And SUVs" Package included 1 pair air horn Note -We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. -Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm). -The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. -If there is any problem with our products, please do not leave us any negative comments, please contact us, we will do our best to help you solve the problem