Specifications:This horn is mainly used for reversing warning of excavators, construction machinery, spacial vehicles, etc.The sound of this reversing horn is loud, and easy to install.It is durable, shock and high temperature resistant with the high quality material.Item Name: Reversing HornShell Material: ABSVoltage: DC12VCurrent: 300mAhPower: 15WDecibels: 102dBWaterproof Grade: IP67Features: Easy to Install, Durable, ShockproofSize: Horn Diameter: 60mm/2.36", Height: 75mm/2.95", Thickness: 40mm/1.57" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Reversing Horn