Product Details: The Ecco 500 Series 12 / 48V Smart Back-Up Alarm is the perfect solution for any vehicle that needs a reliable and effective reverse backup alarm. This alarm is designed to constantly measure ambient noise and adjust its sound level accordingly, ensuring it is always heard. It also features dual volume options of 77 or 97-Decibels, allowing you to choose the proper level that best suits your needs. With this product, you can be sure that your vehicle will always be heard. FleetPride is your First Click in Heavy Duty®.