Description Durable in useThe sound is loud and sonorous Retro design and reat gimmick to attract people s attention Specification Input Voltage 12VOutput Current 2ADecibel 110dbColor ChromeDiameter of the main part 94mm 3 7 InchDiameter of the intallation hole 8mm 0 3 InchUniversal fits for 12V vehicleNote 1 No Instructions Included 2 Please allow 1 3mm differs due to manual measurement 3 We provide clear pictures measurements where possible Please check as much as possible to make sure the item is the one that you need 4 The color of the actual items may slightly different from the listing images due to different computer screen thanks for your understanding Package Included 1 X Electric Horn